I\'m getting the following warning messages in my TeamCity build log:
[GetReferenceAssemblyPaths] C:\\Program Files (x86)\\MSBuild\\12.0\\bin\\Microso
I installed the .NET Framework 4.5.1 SDK and it seems to be working properly now.
Update:
It's called Windows Software Development Kit (SDK) for Windows 8.1 by now.
After starting the installer you'll get to the Select the features you want to install screen where you can untick everything except the .NET Framework 4.5.1 SDK and you'll need only some 70-80 MB of disk space, not the 1.5 GB that the whole SDK would use.