The project file has been moved renamed or is not on your computer

Question

I get this error when I try to load a VS 2008 project from TFS source control:

The project file has been moved, renamed or is not on your computer

Answer 1

What typically helps to fix it is deleting the Solution User Options aka "SUO".

VS up to 2013

In the older VS it is stored as a "hidden" SolutionName.suo in the same folder as the main .sln file.

VS2015 or later

In VS2015 the same data was moved to a "hidden" .vs folder under the same folder as the main .sln file.