Trouble with porting

So I ported some models and materials from Black Mesa into Gmod, and all the models have the generic purple/black checkerboard pattern instead of their proper textures. Is there any way to assign the textures to their respective models?

(User was banned for this post ("undescriptive thread title" - Gran PC))

Make sure you copied the materials, and pasted in the right place. It shouldn’t do this if you did everything right. You probably forgot the materials, some of it, or mispasted it. Never tried Black Mesa, but if it has a GCF its probably there. Look at the VMT’s and see if the texture files are there. And look in the model if you have all the right VMTs. Also, wrong section.