Is there any way to copy an entire Visual C# solution in such a way that it works? If you just copy it and rename it, it gives an error message that it's been renamed and therefore it refuses to work.
You can do it, you just have to rename it in more places than one. If it's a matter of renaming though, I would just create a new project with the new name, and take all of the files (or if it doesn't like that, the source code of those files) and paste them into the new solution and try building that.