Well its the year 2019 and here I am trying to make a mod for 1.2.5. Specifically a SkinPatch for Tekkit Classic 3.1.2.
Anyways, after hours upon hours of searching how to setup MCP with Forge, and repeatedly failing due to decompiling errors, missing fernflower.jar, etc, I FINALLY got it working while scouring every corner of the internet. As soon as I got this working, I posted it on here for archiving purposes! Hopefully this helps some of you guys out there trying to revive the once beloved 1.2.5