I've used the search button, downloaded stuff that has a list of tool errors and still I have never come across this error..
I'm trying to create the bsp for my map but it keeps giving me this error:
### The model shader levels\fort\shaders\rock cannot be used in the environment.
### The model shader levels\fort\shaders\cliff cannot be used in the environment.
(This continues for the rest of my bitmaps/shaders)
02.03.10 20:52:43 some shaders were of inappropriate types.

Thanks for any help!

Yeah, you're trying to use a shader_model on a bsp. BSP's can use only shader_environments (and some transparent shaders) shader_environments allow for multiple detail maps and bump maps and other cool stuff, where as shader_models, are a bit dumbed down, and are used on anything else (weapons, vehicles, bipeds, scenery, etc)

So, on BSP's, when you set up the shaders, make sure you only reference to shader_environments.