Building on Linux failed

I ran build.sh (tried as user and also as sudo) but it fails to build.
Output:

andrew@andrewsbuntu:~/Downloads/ETGMod.Reloaded-master$ sudo ./build.sh 
XBuild Engine Version 14.0
Mono, Version 4.6.2.0
Copyright (C) 2005-2013 Various Mono authors

Build started 12/19/2018 2:28:04 PM.
__________________________________________________
/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln:  warning : Failed to find project d4cfd952-4edc-421d-84a5-998688815124
Project "/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln" (default target(s)):
	Target ValidateSolutionConfiguration:
		Building solution configuration "Debug|Any CPU".
	Target Build:
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/YamlDotNet.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/YamlDotNet.dll Core/AnchorNotFoundException.cs Core/CharacterAnalyzer.cs Core/Constants.cs Core/Cursor.cs Core/Emitter.cs Core/EmitterState.cs Core/ParserExtensions.cs Core/Events/AnchorAlias.cs Core/Events/Comment.cs Core/Events/DocumentEnd.cs Core/Events/DocumentStart.cs Core/Events/EventType.cs Core/Events/IParsingEventVisitor.cs Core/Events/MappingStyle.cs Core/Events/NodeEvent.cs Core/Events/ParsingEvent.cs Core/Events/MappingEnd.cs Core/Events/MappingStart.cs Core/Events/Scalar.cs Core/Events/SequenceEnd.cs Core/Events/SequenceStart.cs Core/Events/SequenceStyle.cs Core/Events/StreamEnd.cs Core/Events/StreamStart.cs Core/FakeList.cs Core/ForwardAnchorNotSupportedException.cs Core/HashCode.cs Core/IEmitter.cs Core/ILookAheadBuffer.cs Core/InsertionQueue.cs Core/IParser.cs Core/IScanner.cs Core/LookAheadBuffer.cs Core/Mark.cs Core/MergingParser.cs Core/Parser.cs Core/ParserState.cs Core/MaximumRecursionLevelReachedException.cs Core/Tokens/Comment.cs GlobalSuppressions.cs Helpers/ExpressionExtensions.cs Helpers/Portability.cs Properties/AssemblyInfo.cs Core/Scanner.cs Core/SemanticErrorException.cs Core/SimpleKey.cs Core/StringLookAheadBuffer.cs Core/SyntaxErrorException.cs Core/TagDirectiveCollection.cs Core/Tokens/AnchorAlias.cs Core/Tokens/Anchor.cs Core/Tokens/BlockEnd.cs Core/Tokens/BlockEntry.cs Core/Tokens/BlockMappingStart.cs Core/Tokens/BlockSequenceStart.cs Core/Tokens/DocumentEnd.cs Core/Tokens/DocumentStart.cs Core/Tokens/FlowEntry.cs Core/Tokens/FlowMappingEnd.cs Core/Tokens/FlowMappingStart.cs Core/Tokens/FlowSequenceEnd.cs Core/Tokens/FlowSequenceStart.cs Core/Tokens/Key.cs Core/Tokens/Scalar.cs Core/ScalarStyle.cs Core/Tokens/StreamEnd.cs Core/Tokens/StreamStart.cs Core/Tokens/Tag.cs Core/Tokens/TagDirective.cs Core/Tokens/Token.cs Core/Tokens/Value.cs Core/Tokens/VersionDirective.cs Core/Version.cs Core/YamlException.cs Properties/AssemblyInfo.Generated.cs RepresentationModel/DocumentLoadingState.cs RepresentationModel/EmitterState.cs RepresentationModel/IYamlVisitor.cs Core/RecursionLevel.cs RepresentationModel/YamlAliasNode.cs RepresentationModel/YamlDocument.cs RepresentationModel/YamlMappingNode.cs RepresentationModel/YamlNode.cs RepresentationModel/YamlNodeIdentityEqualityComparer.cs RepresentationModel/YamlNodeType.cs RepresentationModel/YamlScalarNode.cs RepresentationModel/YamlSequenceNode.cs RepresentationModel/YamlStream.cs RepresentationModel/YamlVisitor.cs Serialization/BuilderSkeleton.cs RepresentationModel/YamlVisitorBase.cs Serialization/Converters/DateTimeConverter.cs Serialization/Converters/GuidConverter.cs Serialization/EventEmitters/CustomTagEventEmitter.cs Serialization/Deserializer.cs Serialization/DeserializerBuilder.cs Serialization/EmissionPhaseObjectGraphVisitorArgs.cs Serialization/EventEmitters/ChainedEventEmitter.cs Serialization/EventEmitters/JsonEventEmitter.cs Serialization/EventEmitters/TypeAssigningEventEmitter.cs Serialization/EventEmitters/WriterEventEmitter.cs Serialization/EventInfo.cs Serialization/IAliasProvider.cs Serialization/IEventEmitter.cs Serialization/INamingConvention.cs Serialization/INodeDeserializer.cs Serialization/INodeTypeResolver.cs Serialization/IObjectDescriptor.cs Serialization/IObjectFactory.cs Serialization/IObjectGraphTraversalStrategy.cs Serialization/IObjectGraphVisitor.cs Serialization/IPropertyDescriptor.cs Serialization/IRegistrationLocationSelectionSyntax.cs Serialization/ITypeInspector.cs Serialization/ITypeResolver.cs Serialization/IValueDeserializer.cs Serialization/IValuePromise.cs Serialization/IValueSerializer.cs Serialization/IYamlConvertible.cs Serialization/IYamlSerializable.cs Serialization/IYamlTypeConverter.cs Serialization/LazyComponentRegistrationList.cs Serialization/LazyComponentRegistrationListExtensions.cs Serialization/NamingConventions/CamelCaseNamingConvention.cs Serialization/NamingConventions/HyphenatedNamingConvention.cs Serialization/NamingConventions/NullNamingConvention.cs Serialization/NamingConventions/PascalCaseNamingConvention.cs Serialization/NamingConventions/UnderscoredNamingConvention.cs Serialization/NodeDeserializers/ArrayNodeDeserializer.cs Serialization/NodeDeserializers/YamlConvertibleNodeDeserializer.cs Serialization/NodeDeserializers/EnumerableNodeDeserializer.cs Serialization/NodeDeserializers/CollectionNodeDeserializer.cs Serialization/NodeDeserializers/DictionaryNodeDeserializer.cs Helpers/GenericCollectionToNonGenericAdapter.cs Helpers/GenericDictionaryToNonGenericAdapter.cs Serialization/NodeDeserializers/NullNodeDeserializer.cs Serialization/NodeDeserializers/ObjectNodeDeserializer.cs Serialization/NodeDeserializers/ScalarNodeDeserializer.cs Serialization/NodeDeserializers/TypeConverterNodeDeserializer.cs Serialization/NodeDeserializers/YamlSerializableNodeDeserializer.cs Serialization/NodeTypeResolvers/YamlConvertibleTypeResolver.cs Serialization/NodeTypeResolvers/DefaultContainersNodeTypeResolver.cs Serialization/NodeTypeResolvers/TagNodeTypeResolver.cs Serialization/NodeTypeResolvers/TypeNameInTagNodeTypeResolver.cs Serialization/NodeTypeResolvers/YamlSerializableTypeResolver.cs Serialization/Nothing.cs Serialization/ObjectDescriptor.cs Serialization/ObjectFactories/DefaultObjectFactory.cs Serialization/ObjectFactories/LambdaObjectFactory.cs Serialization/ObjectGraphTraversalStrategies/FullObjectGraphTraversalStrategy.cs Serialization/ObjectGraphTraversalStrategies/RoundtripObjectGraphTraversalStrategy.cs Serialization/ObjectGraphVisitors/AnchorAssigner.cs Serialization/ObjectGraphVisitors/AnchorAssigningObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/ChainedObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/CustomSerializationObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/DefaultExclusiveObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/EmittingObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/PreProcessingPhaseObjectGraphVisitorSkeleton.cs Serialization/PropertyDescriptor.cs Serialization/SerializationOptions.cs Serialization/Serializer.cs Serialization/SerializerBuilder.cs Serialization/StreamFragment.cs Serialization/TagMappings.cs Serialization/TypeInspectors/CachedTypeInspector.cs Serialization/TypeInspectors/NamingConventionTypeInspector.cs Serialization/TypeInspectors/ReadableAndWritablePropertiesTypeInspector.cs Serialization/TypeInspectors/ReadablePropertiesTypeInspector.cs Serialization/TypeInspectors/TypeInspectorSkeleton.cs Serialization/TypeResolvers/DynamicTypeResolver.cs Serialization/TypeResolvers/StaticTypeResolver.cs Serialization/Utilities/IPostDeserializationCallback.cs Serialization/Utilities/ObjectAnchorCollection.cs Serialization/Utilities/ReflectionUtility.cs Serialization/Utilities/SerializerState.cs Serialization/Utilities/StringExtensions.cs Serialization/Utilities/TypeConverter.cs Serialization/ValueDeserializers/AliasValueDeserializer.cs Serialization/ValueDeserializers/NodeValueDeserializer.cs Serialization/YamlAttributeOverrides.cs Serialization/YamlAttributeOverridesInspector.cs Serialization/YamlAttributesTypeInspector.cs Serialization/YamlFormatter.cs Serialization/YamlIgnoreAttribute.cs Serialization/YamlMember.cs /target:library /define:"DEBUG;TRACE" /nowarn:1591 /doc:bin/Debug/YamlDotNet.xml /nostdlib /reference:/usr/lib/mono/gac/System/4.0.0.0__b77a5c561934e089/System.dll /reference:/usr/lib/mono/gac/System.Core/4.0.0.0__b77a5c561934e089/System.Core.dll /warn:4
CSC: error CS0518: The predefined type `System.Object' is not defined or imported
CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
CSC: error CS0518: The predefined type `System.Single' is not defined or imported
CSC: error CS0518: The predefined type `System.Double' is not defined or imported
CSC: error CS0518: The predefined type `System.Char' is not defined or imported
CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
CSC: error CS0518: The predefined type `System.String' is not defined or imported
CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
CSC: error CS0518: The predefined type `System.Void' is not defined or imported
CSC: error CS0518: The predefined type `System.Array' is not defined or imported
CSC: error CS0518: The predefined type `System.Type' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.Exception' is not defined or imported
			Task "Csc" execution -- FAILED
			Done building target "CoreCompile" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/YamlDotNet.csproj".-- FAILED
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/YamlDotNet.csproj".-- FAILED
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
				Created directory "bin/Debug/"
				Created directory "obj/Debug/"
			Target CopyFilesMarkedCopyLocal:
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.dll' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/bin/Debug/Mono.Cecil.dll'
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.Mdb.dll' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/bin/Debug/Mono.Cecil.Mdb.dll'
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.Pdb.dll' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/bin/Debug/Mono.Cecil.Pdb.dll'
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/MonoMod.exe MonoMod/DebugIL/DebugILGeneratorExt.cs MonoMod/DebugIL/DebugILGenerator.cs MonoMod/Detour/MMDetourerLevel.cs MonoMod/Detour/MMDetourer.cs MonoMod/Detour/RuntimeDetour.cs MonoMod/Helpers/LongDictionary.cs MonoMod/InlineRT/MMILAccessParser.cs MonoMod/QuickDebugTest.cs MonoMod/Helpers/FastDictionary`3.cs MonoMod/Helpers/IntDictionary.cs MonoMod/Helpers/FastDictionary.cs MonoMod/InlineRT/MMILExec.cs MonoMod/InlineRT/MMILRT.cs MonoMod/InlineRT/MMILProxyManager.cs MonoMod/InlineRT/ReflectionHelper.cs MonoMod/Modifiers/MonoModCustomAttribute.cs MonoMod/Modifiers/MonoModHook.cs MonoMod/Modifiers/MonoModIfFlag.cs MonoMod/Modifiers/TemporaryMMILAccessExample.cs MonoMod/Modifiers/MonoModInline.Access.cs MonoMod/Modifiers/MonoModNoNew.cs MonoMod/Modifiers/MonoModOnPlatform.cs MonoMod/Modifiers/MonoModAdded.cs MonoMod/Modifiers/MonoModOriginal.cs MonoMod/Modifiers/MonoModOriginalName.cs MonoMod/Modifiers/MonoModTargetModule.cs MonoMod/Modifiers/MonoModPublic.cs MonoMod/Modifiers/MonoModPatch.cs MonoMod/MonoModder.cs MonoMod/MonoModExt.cs MonoMod/Modifiers/Platform.cs MonoMod/Modifiers/PlatformHelper.cs MonoMod/DebugSymbolFormat.cs MonoMod/Program.cs MonoMod/Helpers/StringInjectExtension.cs Properties/AssemblyInfo.cs MonoMod/Modifiers/MonoModIgnore.cs MonoMod/Modifiers/MonoModRemove.cs MonoMod/Modifiers/MonoModReplace.cs MonoMod/Modifiers/MonoModConstructor.cs MonoMod/Modifiers/MonoModLinkTo.cs MonoMod/Modifiers/MonoModEnumReplace.cs MonoMod/Modifiers/MonoModInline.cs MonoMod/Helpers/NET40Shim.cs /target:exe /unsafe+ /define:"DEBUG;MONOMOD_NET40_SHIM" /nostdlib /platform:AnyCPU /reference:packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.dll /reference:packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.Mdb.dll /reference:packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.Pdb.dll /reference:/usr/lib/mono/gac/System/4.0.0.0__b77a5c561934e089/System.dll /reference:/usr/lib/mono/gac/System.Core/4.0.0.0__b77a5c561934e089/System.Core.dll /warn:4
CSC: error CS0518: The predefined type `System.Object' is not defined or imported
CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
CSC: error CS0518: The predefined type `System.Single' is not defined or imported
CSC: error CS0518: The predefined type `System.Double' is not defined or imported
CSC: error CS0518: The predefined type `System.Char' is not defined or imported
CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
CSC: error CS0518: The predefined type `System.String' is not defined or imported
CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
CSC: error CS0518: The predefined type `System.Void' is not defined or imported
CSC: error CS0518: The predefined type `System.Array' is not defined or imported
CSC: error CS0518: The predefined type `System.Type' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.Exception' is not defined or imported
			Task "Csc" execution -- FAILED
			Done building target "CoreCompile" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj".-- FAILED
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj".-- FAILED
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/Logger.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/Logger.dll Logger.cs Properties/AssemblyInfo.cs /target:library /define:DEBUG /nostdlib /reference:/usr/lib/mono/gac/System/4.0.0.0__b77a5c561934e089/System.dll /warn:4
CSC: error CS0518: The predefined type `System.Object' is not defined or imported
CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
CSC: error CS0518: The predefined type `System.Single' is not defined or imported
CSC: error CS0518: The predefined type `System.Double' is not defined or imported
CSC: error CS0518: The predefined type `System.Char' is not defined or imported
CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
CSC: error CS0518: The predefined type `System.String' is not defined or imported
CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
CSC: error CS0518: The predefined type `System.Void' is not defined or imported
CSC: error CS0518: The predefined type `System.Array' is not defined or imported
CSC: error CS0518: The predefined type `System.Type' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.Exception' is not defined or imported
			Task "Csc" execution -- FAILED
			Done building target "CoreCompile" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/Logger.csproj".-- FAILED
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/Logger.csproj".-- FAILED
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/MicroLua.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/MicroLua.dll /resource:obj/Debug/MicroLua.ErrorMechanism.lua,ErrorMechanism.lua Properties/AssemblyInfo.cs Errors.cs LuaBinding.cs RefTable.cs Lua.cs LuaCLRInvokeProxy.cs LuaState/LuaState.cs LuaState/CLRInvokes.cs LuaState/ScriptLoading.cs LuaState/StackOperations.cs LuaState/StackSafety.cs LuaState/StackRetrieval.cs LuaState/LuaCLRBridging.cs LuaState/TableOperations.cs LuaState/References.cs LuaState/GCOperations.cs LuaState/Functions.cs LuaState/InteropLibrary.cs LuaState/LuaCLRConversions.cs LuaState/Type.cs LuaGenericParams.cs GetMethodExt.cs /target:library /unsafe+ /define:DEBUG /nostdlib /reference:/usr/lib/mono/gac/System/4.0.0.0__b77a5c561934e089/System.dll /reference:/usr/lib/mono/gac/System.Core/4.0.0.0__b77a5c561934e089/System.Core.dll /warn:4
CSC: error CS0518: The predefined type `System.Object' is not defined or imported
CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
CSC: error CS0518: The predefined type `System.Single' is not defined or imported
CSC: error CS0518: The predefined type `System.Double' is not defined or imported
CSC: error CS0518: The predefined type `System.Char' is not defined or imported
CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
CSC: error CS0518: The predefined type `System.String' is not defined or imported
CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
CSC: error CS0518: The predefined type `System.Void' is not defined or imported
CSC: error CS0518: The predefined type `System.Array' is not defined or imported
CSC: error CS0518: The predefined type `System.Type' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.Exception' is not defined or imported
			Task "Csc" execution -- FAILED
			Done building target "CoreCompile" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/MicroLua.csproj".-- FAILED
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/MicroLua.csproj".-- FAILED
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/Prefabric.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/Prefabric.dll Properties/AssemblyInfo.cs src/JSONConverters.cs src/Prefabric.cs src/Primitives.cs src/Unity.cs /target:library /define:DEBUG /nostdlib /reference:/usr/lib/mono/gac/System/4.0.0.0__b77a5c561934e089/System.dll /reference:../libs/UnityEngine.CoreModule.dll /reference:/usr/lib/mono/gac/System.Data/4.0.0.0__b77a5c561934e089/System.Data.dll /reference:../libs/Newtonsoft.Json.dll /reference:../libs/System.Xml.Linq.dll /reference:/usr/lib/mono/gac/System.Core/4.0.0.0__b77a5c561934e089/System.Core.dll /warn:4
CSC: error CS0518: The predefined type `System.Object' is not defined or imported
CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
CSC: error CS0518: The predefined type `System.Single' is not defined or imported
CSC: error CS0518: The predefined type `System.Double' is not defined or imported
CSC: error CS0518: The predefined type `System.Char' is not defined or imported
CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
CSC: error CS0518: The predefined type `System.String' is not defined or imported
CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
CSC: error CS0518: The predefined type `System.Void' is not defined or imported
CSC: error CS0518: The predefined type `System.Array' is not defined or imported
CSC: error CS0518: The predefined type `System.Type' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
CSC: error CS0518: The predefined type `System.Exception' is not defined or imported
			Task "Csc" execution -- FAILED
			Done building target "CoreCompile" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/Prefabric.csproj".-- FAILED
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/Prefabric.csproj".-- FAILED
	Task "MSBuild" execution -- FAILED
	Done building target "Build" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln".-- FAILED
Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln".-- FAILED

Build FAILED.

Warnings:

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln:  warning : Failed to find project d4cfd952-4edc-421d-84a5-998688815124

Errors:

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln (default targets) ->
(Build target) ->
/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/YamlDotNet.csproj (default targets) ->
/usr/lib/mono/xbuild/14.0/bin/Microsoft.CSharp.targets (CoreCompile target) ->

	CSC: error CS0518: The predefined type `System.Object' is not defined or imported
	CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
	CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
	CSC: error CS0518: The predefined type `System.Single' is not defined or imported
	CSC: error CS0518: The predefined type `System.Double' is not defined or imported
	CSC: error CS0518: The predefined type `System.Char' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
	CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
	CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
	CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
	CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
	CSC: error CS0518: The predefined type `System.String' is not defined or imported
	CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
	CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.Void' is not defined or imported
	CSC: error CS0518: The predefined type `System.Array' is not defined or imported
	CSC: error CS0518: The predefined type `System.Type' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.Exception' is not defined or imported

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln (default targets) ->
(Build target) ->
/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj (default targets) ->
/usr/lib/mono/xbuild/14.0/bin/Microsoft.CSharp.targets (CoreCompile target) ->

	CSC: error CS0518: The predefined type `System.Object' is not defined or imported
	CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
	CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
	CSC: error CS0518: The predefined type `System.Single' is not defined or imported
	CSC: error CS0518: The predefined type `System.Double' is not defined or imported
	CSC: error CS0518: The predefined type `System.Char' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
	CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
	CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
	CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
	CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
	CSC: error CS0518: The predefined type `System.String' is not defined or imported
	CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
	CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.Void' is not defined or imported
	CSC: error CS0518: The predefined type `System.Array' is not defined or imported
	CSC: error CS0518: The predefined type `System.Type' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.Exception' is not defined or imported

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln (default targets) ->
(Build target) ->
/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/Logger.csproj (default targets) ->
/usr/lib/mono/xbuild/14.0/bin/Microsoft.CSharp.targets (CoreCompile target) ->

	CSC: error CS0518: The predefined type `System.Object' is not defined or imported
	CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
	CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
	CSC: error CS0518: The predefined type `System.Single' is not defined or imported
	CSC: error CS0518: The predefined type `System.Double' is not defined or imported
	CSC: error CS0518: The predefined type `System.Char' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
	CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
	CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
	CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
	CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
	CSC: error CS0518: The predefined type `System.String' is not defined or imported
	CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
	CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.Void' is not defined or imported
	CSC: error CS0518: The predefined type `System.Array' is not defined or imported
	CSC: error CS0518: The predefined type `System.Type' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.Exception' is not defined or imported

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln (default targets) ->
(Build target) ->
/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/MicroLua.csproj (default targets) ->
/usr/lib/mono/xbuild/14.0/bin/Microsoft.CSharp.targets (CoreCompile target) ->

	CSC: error CS0518: The predefined type `System.Object' is not defined or imported
	CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
	CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
	CSC: error CS0518: The predefined type `System.Single' is not defined or imported
	CSC: error CS0518: The predefined type `System.Double' is not defined or imported
	CSC: error CS0518: The predefined type `System.Char' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
	CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
	CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
	CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
	CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
	CSC: error CS0518: The predefined type `System.String' is not defined or imported
	CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
	CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.Void' is not defined or imported
	CSC: error CS0518: The predefined type `System.Array' is not defined or imported
	CSC: error CS0518: The predefined type `System.Type' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.Exception' is not defined or imported

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln (default targets) ->
(Build target) ->
/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/Prefabric.csproj (default targets) ->
/usr/lib/mono/xbuild/14.0/bin/Microsoft.CSharp.targets (CoreCompile target) ->

	CSC: error CS0518: The predefined type `System.Object' is not defined or imported
	CSC: error CS0518: The predefined type `System.ValueType' is not defined or imported
	CSC: error CS0518: The predefined type `System.Attribute' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int32' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt32' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int64' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt64' is not defined or imported
	CSC: error CS0518: The predefined type `System.Single' is not defined or imported
	CSC: error CS0518: The predefined type `System.Double' is not defined or imported
	CSC: error CS0518: The predefined type `System.Char' is not defined or imported
	CSC: error CS0518: The predefined type `System.Int16' is not defined or imported
	CSC: error CS0518: The predefined type `System.Decimal' is not defined or imported
	CSC: error CS0518: The predefined type `System.Boolean' is not defined or imported
	CSC: error CS0518: The predefined type `System.SByte' is not defined or imported
	CSC: error CS0518: The predefined type `System.Byte' is not defined or imported
	CSC: error CS0518: The predefined type `System.UInt16' is not defined or imported
	CSC: error CS0518: The predefined type `System.String' is not defined or imported
	CSC: error CS0518: The predefined type `System.Enum' is not defined or imported
	CSC: error CS0518: The predefined type `System.Delegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.MulticastDelegate' is not defined or imported
	CSC: error CS0518: The predefined type `System.Void' is not defined or imported
	CSC: error CS0518: The predefined type `System.Array' is not defined or imported
	CSC: error CS0518: The predefined type `System.Type' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerator' is not defined or imported
	CSC: error CS0518: The predefined type `System.Collections.IEnumerable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IDisposable' is not defined or imported
	CSC: error CS0518: The predefined type `System.IntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.UIntPtr' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeFieldHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.RuntimeTypeHandle' is not defined or imported
	CSC: error CS0518: The predefined type `System.Exception' is not defined or imported

	 1 Warning(s)
	 155 Error(s)

Time Elapsed 00:00:00.9797730

Is there a fix for this?
Or am I supposed to get that shitty Windows on my PC? :P

[zatherz]

I use Linux myself. It looks like your Mono installation is missing the .NET framework libraries, try reinstalling/updating Mono.

There are no updates for my Mono and reinstalling also didn't help. I've also checked my mono .net packages and they are all installed.
However when I added /p:TargetFrameworkVersion="v4.5" to the xbuild command in build.sh I got different (and a lot less) error message(s):

XBuild Engine Version 14.0
Mono, Version 4.6.2.0
Copyright (C) 2005-2013 Various Mono authors

Build started 12/21/2018 11:26:52 PM.
__________________________________________________
/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln:  warning : Failed to find project d4cfd952-4edc-421d-84a5-998688815124
Project "/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln" (default target(s)):
	Target ValidateSolutionConfiguration:
		Building solution configuration "Debug|Any CPU".
	Target Build:
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/YamlDotNet.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/YamlDotNet.dll Core/AnchorNotFoundException.cs Core/CharacterAnalyzer.cs Core/Constants.cs Core/Cursor.cs Core/Emitter.cs Core/EmitterState.cs Core/ParserExtensions.cs Core/Events/AnchorAlias.cs Core/Events/Comment.cs Core/Events/DocumentEnd.cs Core/Events/DocumentStart.cs Core/Events/EventType.cs Core/Events/IParsingEventVisitor.cs Core/Events/MappingStyle.cs Core/Events/NodeEvent.cs Core/Events/ParsingEvent.cs Core/Events/MappingEnd.cs Core/Events/MappingStart.cs Core/Events/Scalar.cs Core/Events/SequenceEnd.cs Core/Events/SequenceStart.cs Core/Events/SequenceStyle.cs Core/Events/StreamEnd.cs Core/Events/StreamStart.cs Core/FakeList.cs Core/ForwardAnchorNotSupportedException.cs Core/HashCode.cs Core/IEmitter.cs Core/ILookAheadBuffer.cs Core/InsertionQueue.cs Core/IParser.cs Core/IScanner.cs Core/LookAheadBuffer.cs Core/Mark.cs Core/MergingParser.cs Core/Parser.cs Core/ParserState.cs Core/MaximumRecursionLevelReachedException.cs Core/Tokens/Comment.cs GlobalSuppressions.cs Helpers/ExpressionExtensions.cs Helpers/Portability.cs Properties/AssemblyInfo.cs Core/Scanner.cs Core/SemanticErrorException.cs Core/SimpleKey.cs Core/StringLookAheadBuffer.cs Core/SyntaxErrorException.cs Core/TagDirectiveCollection.cs Core/Tokens/AnchorAlias.cs Core/Tokens/Anchor.cs Core/Tokens/BlockEnd.cs Core/Tokens/BlockEntry.cs Core/Tokens/BlockMappingStart.cs Core/Tokens/BlockSequenceStart.cs Core/Tokens/DocumentEnd.cs Core/Tokens/DocumentStart.cs Core/Tokens/FlowEntry.cs Core/Tokens/FlowMappingEnd.cs Core/Tokens/FlowMappingStart.cs Core/Tokens/FlowSequenceEnd.cs Core/Tokens/FlowSequenceStart.cs Core/Tokens/Key.cs Core/Tokens/Scalar.cs Core/ScalarStyle.cs Core/Tokens/StreamEnd.cs Core/Tokens/StreamStart.cs Core/Tokens/Tag.cs Core/Tokens/TagDirective.cs Core/Tokens/Token.cs Core/Tokens/Value.cs Core/Tokens/VersionDirective.cs Core/Version.cs Core/YamlException.cs Properties/AssemblyInfo.Generated.cs RepresentationModel/DocumentLoadingState.cs RepresentationModel/EmitterState.cs RepresentationModel/IYamlVisitor.cs Core/RecursionLevel.cs RepresentationModel/YamlAliasNode.cs RepresentationModel/YamlDocument.cs RepresentationModel/YamlMappingNode.cs RepresentationModel/YamlNode.cs RepresentationModel/YamlNodeIdentityEqualityComparer.cs RepresentationModel/YamlNodeType.cs RepresentationModel/YamlScalarNode.cs RepresentationModel/YamlSequenceNode.cs RepresentationModel/YamlStream.cs RepresentationModel/YamlVisitor.cs Serialization/BuilderSkeleton.cs RepresentationModel/YamlVisitorBase.cs Serialization/Converters/DateTimeConverter.cs Serialization/Converters/GuidConverter.cs Serialization/EventEmitters/CustomTagEventEmitter.cs Serialization/Deserializer.cs Serialization/DeserializerBuilder.cs Serialization/EmissionPhaseObjectGraphVisitorArgs.cs Serialization/EventEmitters/ChainedEventEmitter.cs Serialization/EventEmitters/JsonEventEmitter.cs Serialization/EventEmitters/TypeAssigningEventEmitter.cs Serialization/EventEmitters/WriterEventEmitter.cs Serialization/EventInfo.cs Serialization/IAliasProvider.cs Serialization/IEventEmitter.cs Serialization/INamingConvention.cs Serialization/INodeDeserializer.cs Serialization/INodeTypeResolver.cs Serialization/IObjectDescriptor.cs Serialization/IObjectFactory.cs Serialization/IObjectGraphTraversalStrategy.cs Serialization/IObjectGraphVisitor.cs Serialization/IPropertyDescriptor.cs Serialization/IRegistrationLocationSelectionSyntax.cs Serialization/ITypeInspector.cs Serialization/ITypeResolver.cs Serialization/IValueDeserializer.cs Serialization/IValuePromise.cs Serialization/IValueSerializer.cs Serialization/IYamlConvertible.cs Serialization/IYamlSerializable.cs Serialization/IYamlTypeConverter.cs Serialization/LazyComponentRegistrationList.cs Serialization/LazyComponentRegistrationListExtensions.cs Serialization/NamingConventions/CamelCaseNamingConvention.cs Serialization/NamingConventions/HyphenatedNamingConvention.cs Serialization/NamingConventions/NullNamingConvention.cs Serialization/NamingConventions/PascalCaseNamingConvention.cs Serialization/NamingConventions/UnderscoredNamingConvention.cs Serialization/NodeDeserializers/ArrayNodeDeserializer.cs Serialization/NodeDeserializers/YamlConvertibleNodeDeserializer.cs Serialization/NodeDeserializers/EnumerableNodeDeserializer.cs Serialization/NodeDeserializers/CollectionNodeDeserializer.cs Serialization/NodeDeserializers/DictionaryNodeDeserializer.cs Helpers/GenericCollectionToNonGenericAdapter.cs Helpers/GenericDictionaryToNonGenericAdapter.cs Serialization/NodeDeserializers/NullNodeDeserializer.cs Serialization/NodeDeserializers/ObjectNodeDeserializer.cs Serialization/NodeDeserializers/ScalarNodeDeserializer.cs Serialization/NodeDeserializers/TypeConverterNodeDeserializer.cs Serialization/NodeDeserializers/YamlSerializableNodeDeserializer.cs Serialization/NodeTypeResolvers/YamlConvertibleTypeResolver.cs Serialization/NodeTypeResolvers/DefaultContainersNodeTypeResolver.cs Serialization/NodeTypeResolvers/TagNodeTypeResolver.cs Serialization/NodeTypeResolvers/TypeNameInTagNodeTypeResolver.cs Serialization/NodeTypeResolvers/YamlSerializableTypeResolver.cs Serialization/Nothing.cs Serialization/ObjectDescriptor.cs Serialization/ObjectFactories/DefaultObjectFactory.cs Serialization/ObjectFactories/LambdaObjectFactory.cs Serialization/ObjectGraphTraversalStrategies/FullObjectGraphTraversalStrategy.cs Serialization/ObjectGraphTraversalStrategies/RoundtripObjectGraphTraversalStrategy.cs Serialization/ObjectGraphVisitors/AnchorAssigner.cs Serialization/ObjectGraphVisitors/AnchorAssigningObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/ChainedObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/CustomSerializationObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/DefaultExclusiveObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/EmittingObjectGraphVisitor.cs Serialization/ObjectGraphVisitors/PreProcessingPhaseObjectGraphVisitorSkeleton.cs Serialization/PropertyDescriptor.cs Serialization/SerializationOptions.cs Serialization/Serializer.cs Serialization/SerializerBuilder.cs Serialization/StreamFragment.cs Serialization/TagMappings.cs Serialization/TypeInspectors/CachedTypeInspector.cs Serialization/TypeInspectors/NamingConventionTypeInspector.cs Serialization/TypeInspectors/ReadableAndWritablePropertiesTypeInspector.cs Serialization/TypeInspectors/ReadablePropertiesTypeInspector.cs Serialization/TypeInspectors/TypeInspectorSkeleton.cs Serialization/TypeResolvers/DynamicTypeResolver.cs Serialization/TypeResolvers/StaticTypeResolver.cs Serialization/Utilities/IPostDeserializationCallback.cs Serialization/Utilities/ObjectAnchorCollection.cs Serialization/Utilities/ReflectionUtility.cs Serialization/Utilities/SerializerState.cs Serialization/Utilities/StringExtensions.cs Serialization/Utilities/TypeConverter.cs Serialization/ValueDeserializers/AliasValueDeserializer.cs Serialization/ValueDeserializers/NodeValueDeserializer.cs Serialization/YamlAttributeOverrides.cs Serialization/YamlAttributeOverridesInspector.cs Serialization/YamlAttributesTypeInspector.cs Serialization/YamlFormatter.cs Serialization/YamlIgnoreAttribute.cs Serialization/YamlMember.cs obj/Debug/.NETFramework,Version=v4.5.AssemblyAttribute.cs /target:library /define:"DEBUG;TRACE" /nowarn:1591 /doc:bin/Debug/YamlDotNet.xml /nostdlib /reference:/usr/lib/mono/4.5/System.dll /reference:/usr/lib/mono/4.5/System.Core.dll /reference:/usr/lib/mono/4.5//mscorlib.dll /warn:4
			Target DeployOutputFiles:
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/obj/Debug/YamlDotNet.dll.mdb' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/bin/Debug/YamlDotNet.dll.mdb'
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/obj/Debug/YamlDotNet.dll' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/bin/Debug/YamlDotNet.dll'
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/YamlDotNet/YamlDotNet/YamlDotNet.csproj".
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/MonoMod.exe MonoMod/DebugIL/DebugILGeneratorExt.cs MonoMod/DebugIL/DebugILGenerator.cs MonoMod/Detour/MMDetourerLevel.cs MonoMod/Detour/MMDetourer.cs MonoMod/Detour/RuntimeDetour.cs MonoMod/Helpers/LongDictionary.cs MonoMod/InlineRT/MMILAccessParser.cs MonoMod/QuickDebugTest.cs MonoMod/Helpers/FastDictionary`3.cs MonoMod/Helpers/IntDictionary.cs MonoMod/Helpers/FastDictionary.cs MonoMod/InlineRT/MMILExec.cs MonoMod/InlineRT/MMILRT.cs MonoMod/InlineRT/MMILProxyManager.cs MonoMod/InlineRT/ReflectionHelper.cs MonoMod/Modifiers/MonoModCustomAttribute.cs MonoMod/Modifiers/MonoModHook.cs MonoMod/Modifiers/MonoModIfFlag.cs MonoMod/Modifiers/TemporaryMMILAccessExample.cs MonoMod/Modifiers/MonoModInline.Access.cs MonoMod/Modifiers/MonoModNoNew.cs MonoMod/Modifiers/MonoModOnPlatform.cs MonoMod/Modifiers/MonoModAdded.cs MonoMod/Modifiers/MonoModOriginal.cs MonoMod/Modifiers/MonoModOriginalName.cs MonoMod/Modifiers/MonoModTargetModule.cs MonoMod/Modifiers/MonoModPublic.cs MonoMod/Modifiers/MonoModPatch.cs MonoMod/MonoModder.cs MonoMod/MonoModExt.cs MonoMod/Modifiers/Platform.cs MonoMod/Modifiers/PlatformHelper.cs MonoMod/DebugSymbolFormat.cs MonoMod/Program.cs MonoMod/Helpers/StringInjectExtension.cs Properties/AssemblyInfo.cs MonoMod/Modifiers/MonoModIgnore.cs MonoMod/Modifiers/MonoModRemove.cs MonoMod/Modifiers/MonoModReplace.cs MonoMod/Modifiers/MonoModConstructor.cs MonoMod/Modifiers/MonoModLinkTo.cs MonoMod/Modifiers/MonoModEnumReplace.cs MonoMod/Modifiers/MonoModInline.cs MonoMod/Helpers/NET40Shim.cs obj/Debug/.NETFramework,Version=v4.5.AssemblyAttribute.cs /target:exe /unsafe+ /define:"DEBUG;MONOMOD_NET40_SHIM" /nostdlib /platform:AnyCPU /reference:packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.dll /reference:packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.Mdb.dll /reference:packages/Mono.Cecil.0.10.0-beta5/lib/net35/Mono.Cecil.Pdb.dll /reference:/usr/lib/mono/4.5/System.dll /reference:/usr/lib/mono/4.5/System.Core.dll /reference:/usr/lib/mono/4.5//mscorlib.dll /warn:4
MonoMod/Detour/MMDetourerLevel.cs(42,35): error CS0104: `Tuple' is an ambiguous reference between `System.Tuple<T1,T2>' and `MonoMod.NET40Shim.Tuple<T1,T2>'
				/usr/lib/mono/4.5//mscorlib.dll (Location of the symbol related to previous error)
				MonoMod/Helpers/NET40Shim.cs(16,18): (Location of the symbol related to previous error)
MonoMod/Detour/MMDetourerLevel.cs(43,35): error CS0104: `Tuple' is an ambiguous reference between `System.Tuple<T1,T2>' and `MonoMod.NET40Shim.Tuple<T1,T2>'
				/usr/lib/mono/4.5//mscorlib.dll (Location of the symbol related to previous error)
				MonoMod/Helpers/NET40Shim.cs(16,18): (Location of the symbol related to previous error)
			Task "Csc" execution -- FAILED
			Done building target "CoreCompile" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj".-- FAILED
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj".-- FAILED
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/Logger.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/Logger.dll Logger.cs Properties/AssemblyInfo.cs obj/Debug/.NETFramework,Version=v4.5.AssemblyAttribute.cs /target:library /define:DEBUG /nostdlib /reference:/usr/lib/mono/4.5/System.dll /reference:/usr/lib/mono/4.5/System.Core.dll /reference:/usr/lib/mono/4.5//mscorlib.dll /warn:4
			Target DeployOutputFiles:
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/obj/Debug/Logger.dll.mdb' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/bin/Debug/Logger.dll.mdb'
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/obj/Debug/Logger.dll' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/bin/Debug/Logger.dll'
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Logger/Logger.csproj".
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/MicroLua.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/MicroLua.dll /resource:obj/Debug/MicroLua.ErrorMechanism.lua,ErrorMechanism.lua Properties/AssemblyInfo.cs Errors.cs LuaBinding.cs RefTable.cs Lua.cs LuaCLRInvokeProxy.cs LuaState/LuaState.cs LuaState/CLRInvokes.cs LuaState/ScriptLoading.cs LuaState/StackOperations.cs LuaState/StackSafety.cs LuaState/StackRetrieval.cs LuaState/LuaCLRBridging.cs LuaState/TableOperations.cs LuaState/References.cs LuaState/GCOperations.cs LuaState/Functions.cs LuaState/InteropLibrary.cs LuaState/LuaCLRConversions.cs LuaState/Type.cs LuaGenericParams.cs GetMethodExt.cs obj/Debug/.NETFramework,Version=v4.5.AssemblyAttribute.cs /target:library /unsafe+ /define:DEBUG /nostdlib /reference:/usr/lib/mono/4.5/System.dll /reference:/usr/lib/mono/4.5/System.Core.dll /reference:/usr/lib/mono/4.5//mscorlib.dll /warn:4
LuaState/LuaState.cs(53,17): warning CS0618: `MicroLua.LuaState.VoidProtCall(int)' is obsolete: `Use BeginProtCall/ExecProtCallVoid'
LuaState/CLRInvokes.cs(136,25): warning CS0219: The variable `value' is assigned but its value is never used
LuaState/LuaCLRBridging.cs(65,13): warning CS0618: `MicroLua.LuaState.ProtCall(int, int)' is obsolete: `Use BeginProtCall/ExecProtCall'
LuaState/LuaCLRBridging.cs(75,13): warning CS0618: `MicroLua.LuaState.ProtCall(int, int)' is obsolete: `Use BeginProtCall/ExecProtCall'
LuaState/Type.cs(33,17): warning CS0618: `MicroLua.LuaState.ProtCall(int, int)' is obsolete: `Use BeginProtCall/ExecProtCall'
			Target DeployOutputFiles:
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/obj/Debug/MicroLua.dll.mdb' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/bin/Debug/MicroLua.dll.mdb'
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/obj/Debug/MicroLua.dll' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/bin/Debug/MicroLua.dll'
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/MicroLua.csproj".
		Project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/Prefabric.csproj" (default target(s)):
			Target PrepareForBuild:
				Configuration: Debug Platform: AnyCPU
			Target GenerateSatelliteAssemblies:
			No input files were specified for target GenerateSatelliteAssemblies, skipping.
			Target CoreCompile:
				Tool /usr/lib/mono/4.5/mcs.exe execution started with arguments: /noconfig /debug:full /debug+ /optimize- /out:obj/Debug/Prefabric.dll Properties/AssemblyInfo.cs src/JSONConverters.cs src/Prefabric.cs src/Primitives.cs src/Unity.cs obj/Debug/.NETFramework,Version=v4.5.AssemblyAttribute.cs /target:library /define:DEBUG /nostdlib /reference:/usr/lib/mono/4.5/System.dll /reference:../libs/UnityEngine.CoreModule.dll /reference:/usr/lib/mono/4.5/System.Data.dll /reference:../libs/Newtonsoft.Json.dll /reference:../libs/System.Xml.Linq.dll /reference:/usr/lib/mono/4.5/System.Core.dll /reference:/usr/lib/mono/4.5//mscorlib.dll /warn:4
			Target DeployOutputFiles:
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/obj/Debug/Prefabric.dll.mdb' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/bin/Debug/Prefabric.dll.mdb'
				Copying file from '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/obj/Debug/Prefabric.dll' to '/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/bin/Debug/Prefabric.dll'
		Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/libs/Prefabric/Prefabric/Prefabric.csproj".
	Task "MSBuild" execution -- FAILED
	Done building target "Build" in project "/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln".-- FAILED
Done building project "/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln".-- FAILED

Build FAILED.

Warnings:

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln:  warning : Failed to find project d4cfd952-4edc-421d-84a5-998688815124

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln (default targets) ->
(Build target) ->
/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MicroLua/MicroLua/MicroLua.csproj (default targets) ->
/usr/lib/mono/xbuild/14.0/bin/Microsoft.CSharp.targets (CoreCompile target) ->

	LuaState/LuaState.cs(53,17): warning CS0618: `MicroLua.LuaState.VoidProtCall(int)' is obsolete: `Use BeginProtCall/ExecProtCallVoid'
	LuaState/CLRInvokes.cs(136,25): warning CS0219: The variable `value' is assigned but its value is never used
	LuaState/LuaCLRBridging.cs(65,13): warning CS0618: `MicroLua.LuaState.ProtCall(int, int)' is obsolete: `Use BeginProtCall/ExecProtCall'
	LuaState/LuaCLRBridging.cs(75,13): warning CS0618: `MicroLua.LuaState.ProtCall(int, int)' is obsolete: `Use BeginProtCall/ExecProtCall'
	LuaState/Type.cs(33,17): warning CS0618: `MicroLua.LuaState.ProtCall(int, int)' is obsolete: `Use BeginProtCall/ExecProtCall'

Errors:

/home/andrew/Downloads/ETGMod.Reloaded-master/ETGModNeo.sln (default targets) ->
(Build target) ->
/home/andrew/Downloads/ETGMod.Reloaded-master/libs/MonoMod/MonoMod.csproj (default targets) ->
/usr/lib/mono/xbuild/14.0/bin/Microsoft.CSharp.targets (CoreCompile target) ->

	MonoMod/Detour/MMDetourerLevel.cs(42,35): error CS0104: `Tuple' is an ambiguous reference between `System.Tuple<T1,T2>' and `MonoMod.NET40Shim.Tuple<T1,T2>'
	MonoMod/Detour/MMDetourerLevel.cs(43,35): error CS0104: `Tuple' is an ambiguous reference between `System.Tuple<T1,T2>' and `MonoMod.NET40Shim.Tuple<T1,T2>'

	 6 Warning(s)
	 2 Error(s)

Time Elapsed 00:00:01.5853080

What next?

[zatherz]

Yeah, that doesn't work because Unity requires max Mono 3.5 (and it doesn't even compile because the code reimplements some .NET 4 features). What distribution are you using?

Oh sorry! I forgot to specify that.
I'm running Ubuntu 18.04 64-bit.
I've also made sure there aren't any other updates waiting to be installed.