What worked for me (under TFS, not codeplex)
Copy or move the project folder out of your workspace (I put it in c:\temp
), and then open it in VS2008.
Visual studio then shows the following prompt:
The solution appears to be under source control, but its binding information cannot be found. Because it is not possible to recover this missing information automatically, the projects whose bindings are missing will be treated as not under source control.
After this, another dialog appears, as follows:
The solution appears to be under source control, but its binding information cannot be found. Because it is not possible to recover this missing information automatically, the projects whose bindings are missing will be treated as not under source control.
And you can chose Temporarily work uncontrolled, or Permanently remove source control association bindings.
Select the latter, do a Save All, and reload the solution. Profit!