From time to time the CVS repositories (yeah right, 2013 and we still use CVS), will lock some files and not by a user.
If this is the case let's follow this simple procedure:
Error may look like this:
cvs tag: [13:06:02] waiting for foo's lock in /home/some/path/on/your/system
Just go to the mentioned path /home/some/path/on/your/system and then remove all the files that start with #cvs.wfl or #cvs.rfl. That will do the trick.