Export problems

When I try to export something from blender it gives me this.

Non-uv texture in mesh either delete all non uv textures, or in
the shading panel under material buttons set texture map input to uv

So I set all the material map input to UV. When I try to export again it
gives me this.

Create a uv map for every texture and run the script again.

I dont know how to make a uv map. Can someone tell me how?

You probably need to add a UV Map in the UV Editor.

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I tried that it did export the file. But when I put my sword file into the Bethesda softworks construction
set it crashed.