IC2Classic just ported to 1.12 and your "IC2Classic" detecion still uses the Upper case check and crashes because of it. Could you please patch this that its lower cased?

https://github.com/BluSunrize/ImmersiveEngineering/blob/master/src/main/java/blusunrize/immersiveengineering/common/util/compat/IECompatModule.java#L86

thanks for the quick fix.