HaloMods "Classic" Read-only Archive

whenever I try to compile my VERY basic map, i always get the "Choose a type for the shader: 'whatever'. When I put in 1 for environment, it always says "some shaders were not defined"

How do I fix this?
Is this a Tool problem or a material problem?
If it's a material problem, can someone tell me how to CORRECTLY use materials?

different quesion:

when i try to build-cache-file it says:
"###ERROR FAILED TO LOAD SCENARIO"
it also says that "the scenario tag 'levels/test/blah/blah' was not found in the index file"
how do i fix this?