Yesterday I met a strange problem with TeamCity. It couldn't find my new VS projects. I found that the source code of the new VS project was checked out (in BuildAgent's working folder), but it wasn't built.
After I created a copy of a TC build configuration and save it into a new TC project, then run it, it found the new VS projects.
I atteched log files, project solution and TC screenshot (new project names RapX.Core.Tests). I'm using TC 5.0.2, build runner: sln2008.