Hi all, I know someone has posted this same problem, but their problem fixed it's self, and mine hasn't so far. So off we go; I was working on my map doing the same things ive been doing for the last two hours. I compiled, and saved my map every 10 or so minutes, I was trying to perfect some lighting in game, and after not compiling for possibly 20 minutes, and adding a good bit to the map, I tried to compile and run it in game, and an error comes up, my map wouldn't compile no matter what i did, changed settings deleted things i added etc.

*EDIT****EDIT*

found the solution to the problem, and I feel like an idiot. Sorry for posting this with out doing everything i could to try and fix it, it turns out i accidentally tied an old displacement to an entity somehow. Deleting the displacement fixed it.