Could not copy temporary files to the output directory

[Guest]

While trying to compile a Addin project, I get the following error.
The file 'Comments.dll' cannot be copied to the run directory. The process
cannot access the file because it is being used by another process.

 

[Karl Seguin]

Annoying, if this is a one time only-thing, close VS.Net and delete the obj
and bin directories. Try again.

If it isn't, check out:
The process cannot access the file because it is being used by another
process
Karl