Ok this is the first time I have ever needed help on setting up my mods, really. I only get this error when I try to add computer craft. None of the IDs are conflicting because I already moved them so they wouldn't. The Minecraft error error I get when I enter a world weather it be new or old: Forge log: Install order: Forge 188.8.131.52 ModloaderMP mystcraft 1.2.5-0.9.01.0-forge-184.108.40.206 NEI 220.127.116.11 Daxnitro's shader core S soniv ether's shader UNMB sonic ether's shader waving grass and leaves This setup DOES work without computer craft but with it it breaks it. I can't find out why. I probably just missed something simple but I really can't find it. I also tried removing Mystcraft but I still get this error.