Factorio Forums

I need to modify the type of science pack necessary for a base technology, specifically Fluid Handling. I created a mod and placed the following code in data.lua but it doesn't work:
Please advice.

Is that your entire data.lua?

You need to create a new item and a new recipe for crude-science-pack. https://wiki.factorio.com/Tutorial:Modd ... e_creation

I forgot to mention: crude-science-pack exists already in another active mod.

Put your code in data-updates.lua to ensure the other mod is loaded first.