I just installed TeamCity 6.1.5 on a 64-bit Windows 2008 R2 box. I am trying to build a simple Visual Studio 2010 solution (with either the Visual Studio 2010 or msbuild runners), but I can't seem to get a compatible build agent. I keep seeing that my agent is incompatible because of an unmet "DotNetFramework4.0_x86" exists requirement. I made sure I'd installed the full dotnet 4 framework (dotNetFx40_Full_setup). I also saw this thread on Stack Overflow, which implied that the Windows SDK was necessary, so I also installed that. Still, TeamCity keeps giving me this incompatibility notice. How can I solve this?