Backwards tree volume?????

[KA_t_xxXnOsSXxx]

well i was going to test my map, but i get this error when i compile it, can some 1 tell me what is it???, and how can i fix it???
thx

[Fluffy_gIMp]

You have to have something in the map file to split the bsp tree, I’m guessing that you don’t have any structural brushes, which you need inorder to compile.

-Fluffy_gIMp