ZOMG! when i try to play my map it says Humans: 0 Computers: 0 and when i tried it on the bnet it said error plz help

You either need to place starting locations for each player, or set them to Human or computer.

Wait wait wait. What program is he using that will let him to make a full map, but won't stop him when saving without a start location or no computers? That just doesn't make any sense. I'm guessing that the file is corrupted.

SCM Draft lets you.

If you are using Starforge to edit your map, go to the Players menu and set the Controller for some players to Human or Computer instead of Not Used.

Advanced editors let you disable players with start locations, so that could be your problem, too.