Minecraft Forums

My Minecraft crashes back to loader while I am at the forge loading screen. The crash report is listed below.

Error Message:
The game crashed whilst initializing game
Error: java.lang.IllegalArgumentException: ID is already registered: 6

Crash Report:

https://pastebin.com/Tr2mpKr6

FlansMod is trying to use ID 6, but something else is using it. Check the config for it to see if you can change the ID's.

I didn't know how to do that, so I just deleted Flans since I don't even use it that much. I'm still crashing when the forge gets to 5/7.

Error Code:
The game crashed whilst initializing game
Error: java.lang.IllegalArgumentException: ID is already registered: 5

Crash Report:

https://pastebin.com/AwctFaRN

Now it's EnderIO. Try to delete everything under the config folder.

Cleared the config file and restarted MC. Still crashing when Forge is at 5/7

Crash Report: https://pastebin.com/qms1kN1s

Also, how are you figuring out which mod is causing the problem?

It's still EnderIO. You will have to remove each mod one by one, leaving EnderIO in to test.

I look at the crash log.

java.lang.IllegalArgumentException: ID is already registered: 5

at net.minecraft.entity.EntityList.func_75618_a(EntityList.java:94)
at net.minecraft.entity.EntityList.func_75614_a(EntityList.java:108)
at cpw.mods.fml.common.registry.EntityRegistry.registerGlobalEntityID(EntityRegistry.java:251)

at crazypants.enderio.entity.SkeletonHandler.registerSkeleton(SkeletonHandler.java:37)

Look at the last line. A mod will show up in the crash log.

Okay thanks. I actually figured it out. I used enderio config from another big modpack and it fixed it.