lighting problem all textures go black.

[Billo]

i am making a map for a projec i am working on and so far i had no problem with it but somehow when i compiled it today the whole map was black and only the props where ok.
i searched the problem but nothing really helped.
i tried mat_fullbright 1 too.

what should i do?

 

[Crowbar]

Either one/more of your lights is inside a world brush, or world origin (0, 0, 0) is. Fix that.