So was trying out the electric2x2 mod,
but it wouldn't load
got this message

when i scouted for electric2x2 file, i found only the zipped version in the mod directory, so i unzipped it so it had its own folder in the mod directory.
makes me wonder, how did factorio even know that it wanted electric_furnance_base.png if it hadn't even unzipped the electric_furnance2x2 mod?
I've been told mods have to be unzipped b4 they work, but here Factorio seems to be getting instructions from the mod regardless.
Its a complete mystery. You mod devs must know many strange secrets about mods.
I also added it to the mod-list.json file, because I think mods are supposed to be registered there.
and tried again.
got same error message

anyone know whats wrong? I find the solutions interesting because they give insight into the mysteries of factorio mod dev.
thanks