TFS Error: “Source Control - Unable to Access Database”

Question

I am currently using TFS with Visual Studio 2010 Ultimate and getting this error when I try to open up my solution:

The associated source control plug-in is no

Answer 1

I was able to eliminate the error by performing File | Source Control | Open from Source Control. You will be asked whether to overwrite existing files; answer "yes".
(You should, of course, back up your source code first.)

Note, this was on VS2008; I have not tried it on VS2010.