I have a large solution which contains 9 projects. The solution is comprised of a main windows app and several supporting window apps and class libraries.

I've never had any problems debugging the main windows application (for over 1 year), but I just started getting the following message from the development environment while debugging:

"There is no source code available for the current location."

The "current location" is my own code!

I tried deleting all my binary files and rebuilding all - no help.

I have changed nothing as far as the configuration of the solution is concerned. I looked around the net and found several posts concerning this problem, but no one has posted any solution.

I even attempted to migrate the solution from VS .NET 2002 to 2003 and got the same error.

Does anyone know a fix for this problem?