Build.xml

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="3.5" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">  
  <UsingTask TaskName="NUnit" AssemblyFile="$(teamcity_dotnet_nunitlauncher_msbuild_task)" />
  <UsingTask AssemblyFile="Libs/xunit.net/xunit.runner.msbuild.dll" TaskName="Xunit.Runner.MSBuild.xunitproject"/>
  <UsingTask AssemblyFile="Libs/xunit.net/xunit.runner.msbuild.dll" TaskName="Xunit.Runner.MSBuild.xunit"/>
  <Target Name="Build">
    <MSBuild Projects="Agatha.Without.Silverlight.sln" Properties="Configuration=Debug"/>
    <xunitproject
      ProjectFile="Agatha.xunit"
      TeamCity="true"
      Verbose="true"/>
  </Target>
</Project>