Default Test map won't work.

[ROTS19]

I'm playing around with making a mod, and you need to have a default test map setup in preferences to test it. So I made a basic blank map, put an SCV on it, made the game speed Faster, and tried to test the mod. It keeps saying "Unable to open map."

for the path, I just put the file name of the map, which is just in the Maps folder, not in a subfolder. I also tried Maps/Mapname.SC2Map but that didn't work either. How do I get this to work?

EDIT:
Problem solved

 

[TheOverWhelm]

Please explain how you fixed it
I have the same issue and have the same map in several directories.

Edit: I ended up copying and pasting the "copied document" and that worked.. but.. I can't seem to be able to do a different one.
Blargh!