What do I need to install a Visual Studio 2010 (sln)-compatible Build Agent in TeamCity?

Question

I seem to be unable to install a build agent on our TeamCity 5.1.2 build server that is compatible with a VS2010 (sln) build configuration.

Under \"Build Runners\",

Answer 1

TeamCity build agent does not detect .NET 4.0 Client Profile as dotNetFramework4.0. Check you have full .NET Framework 4.0 installed.

Another reason of that is build agent has corrupted plugins. To fix it: - stop agent - remove /plugins, /system, /tools folders - start agent - wait till agent autoupgrade (agent service may be shown as stopped, just wait)