About to cry over something simple...

[Deathbringer]

For some reason the building in my map won't sell units! Its a player owned barracks that has the ability sell units and has units under the "Units Sold" area, but it won't sell them!

 

[Daveman]

Easy, since u have it selling them, you must have a hero beside it to purchase them, if you want them to be bought without a hero, put them under "units trained" instead

 

[Draqz]

I am not sure, but i think there also might be 2 abilities, "secect units" and "select hero". I could however be mistaken.