The requested operation cannot be performed error when compiling an XNA project

Question

When compiling a project for the second time I get the following error message. I have to close down VS 2010 and it compiles when reloaded. If I make a change then the problem c

Answer 1

I also faced the same issue due to a stupid mistake :) All I did is I kept the corresponding output dll open in Visual Studio Object Browser. Closing that dll from the object browser resolved the issue.