Need help with textures

I'm making a mesh slap car for fun. but every time I try to apply textures I either get no textures or just plain white.
How could I fix this? (also the textures show up in blender)

 

You ar eapplying the textures in Blender, but that’s not how it’s done. You apply materials, and then you make a main.materials.json with links between the materials and textures.
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It’s not that easy, you should look up a more professional guide than me

 

What would I put In the main.materials.json files to point toward the texture/model part

 

You can see how it’s done in the vanilla game, or find something on the documentation or YouTube.

 

mk sorry I saw your post update after I sent my msg