How can I import the api into an addon?

  • Version: 1.12.2
    IDE: Eclipse

    Hi, I'm currently working on a mod that uses Industrial Craft 2. I've done some research to use its API but I find it quite complicated and I can't find the answer to my problem.

    I put the mod file (client) in my mod folder of my eclipse (in the run/mods folder) and I made the modifications of the "build.gradle".

    But when I launch my game I get this error that appears:

    I am a 17 year old passionate about information and programming.