What is needed in the tfs 2010 build agent, to build .net 4.5 projects, in tfs 2008 we had to set the MSBuildPath property, but the configuration seems to be different in 2010. I get the following error message. (614): The imported project "C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v11.0\WebApplications\Microsoft.WebApplication.targets" was not found. Confirm that the path in the declaration is correct, and that the file exists on disk. How we handled it in 2008 http://blogs.msdn.com/b/willbar/archive/2009/11/01/building-net-4-0-applications-using-team-build-2008.aspx