Factorio uses Lua to mod, and I had a question about it.
I'm trying to override raw-fish so it changes the type and graphics, but I can't find anything online on how to do it. When I try loading the game with the mod installed, it shows the error:
"Error while loading item prototype "raw-fish" (capsule: Prototype "raw-fish" registered twice"
Any help will be appreciated, as I'm fairly new to modding in general.