Error with UE 4.18

[devwinportable]

error:

Running C:/Program Files/Epic Games/UE_4.18/Engine/Binaries/DotNET/UnrealBuildTool.exe  -projectfiles -project="C:/unreal-stuff/HaxePlatformerGame/PlatformerGame/PlatformerGame.uproject" -game -rocket -progress
Discovering modules, targets and source code for project...
While compiling C:\unreal-stuff\HaxePlatformerGame\PlatformerGame\Intermediate\Build\BuildRules\PlatformerGameModuleRules.dll:
ERROR: c:\unreal-stuff\HaxePlatformerGame\PlatformerGame\Source\PlatformerGame.Target.cs(19,12) : error CS0122: 'UnrealBuildTool.UEBuildBinaryConfiguration' is inaccessible due to its protection level
ERROR: c:\unreal-stuff\HaxePlatformerGame\PlatformerGame\Source\PlatformerGame.Target.cs(17,23) : error CS0051: Inconsistent accessibility: parameter type 'ref System.Collections.Generic.List<UnrealBuildTool.UEBuildBinaryConfiguration>' is less accessible than method 'PlatformerGameTarget.SetupBinaries(UnrealBuildTool.TargetInfo, ref System.Collections.Generic.List<UnrealBuildTool.UEBuildBinaryConfiguration>, ref System.Collections.Generic.List<string>)'
ERROR: c:\unreal-stuff\HaxePlatformerGame\PlatformerGame\Source\PlatformerGameEditor.Target.cs(19,12) : error CS0122: 'UnrealBuildTool.UEBuildBinaryConfiguration' is inaccessible due to its protection level
ERROR: c:\unreal-stuff\HaxePlatformerGame\PlatformerGame\Source\PlatformerGameEditor.Target.cs(17,23) : error CS0051: Inconsistent accessibility: parameter type 'ref System.Collections.Generic.List<UnrealBuildTool.UEBuildBinaryConfiguration>' is less accessible than method 'PlatformerGameEditorTarget.SetupBinaries(UnrealBuildTool.TargetInfo, ref System.Collections.Generic.List<UnrealBuildTool.UEBuildBinaryConfiguration>, ref System.Collections.Generic.List<string>)'
ERROR: c:\unreal-stuff\HaxePlatformerGame\PlatformerGame\Source\PlatformerGameEditor.Target.cs(25,21) : error CS0246: The type or namespace name 'GUBPProjectOptions' could not be found (are you missing a using directive or an assembly reference?)
ERROR: UnrealBuildTool Exception: Unable to compile source files.