David H. said:
Yes, you can't create a folder or rename a folder if that name already
exists in that location.
In other words, you can't make two folders in the same location have the
same name. (Nor - I just checked - can you make a folder of the same
name as a _file_ already there.)
You _can_, of course, make a folder (or, I guess, file) _inside_ another
of the same name.