please help me with this error!

[Blockbuster]

im really sorry for asking this, it might be asked before, i didnt searched for it, but this error is bugging me for some time now…
when i compile my map with bsp -meta -light everything is fine and all, but when i try to run my map i get this error: sv_setbrushmodel: NULL
please help :blah:
thnx in advance

[SiX]

This is an error which related to one of the entities in your map, say you have placed a areaportal texture on a door entity, thats going to give this error. You should look through your entities and see if you can see anything dodgy. Look for mainly irregular textures on entities, like the areaportals on doors, origin textures on triggers etc, remove textures that shouldn’t be on certain entities.

Debatably can also be where you have entities that are only 1 smallest unit thick. This error has been debated to whether it does really cause this error, still if the other solution doesnt work try this.

This was taken from:
http://www.wolfensteinx.com/surface/tutorials/compile_errors.html

[damocles]

And one last thing, it is also when an entity consists of only an origin brush. This is the most common cause, a lot of people accidentally deselect or failt to select secondary brushes when making the entity. Check the entities you have created since your last compile.