We won't know how to help you if you don't provide more description. What files did you include with your patch? Is your patch named correctly? Is your map an edit of Azeroth or a custom zone? What version are you running on?
The list goes on an on.
Though as a rule of thumb, all you should need is a proper patch with ADT files, a WDT file, and a Map.dbc edit. The dbc also has to be loaded serverside as well.
Btw deleting cache and WTF folders has nothing to do with map editing

That stuff is usually for NPCs and Items.