Unable to export any files

[Mechalomaniac20]

I get this error when trying to export an edited body mesh, I'm a beginner at Blender so this doesn't make much sense to me.

I've set the dump to the original files, set the destination to a different folder, but it just gives me this error and the guide doesn't explain what's happening. I've made sure the filename and the name of the mesh are correct/simplified, too. It doesn't acknowledge the name of the file at all.

[leotorrez]

You gotta make sure the names of the objects imported from the dump are matched on export time. Cause those same ones are the ones required for export