found this error when loading game.
java.lang.NoClassDefFoundError: scala/actors/threadpool/Arrays
at ihl.IHLMod.postInit(IHLMod.java:644) ~[IHLMod.class:?]
i decompiled your mod and found
import scala.actors.threadpool.Arrays;
Arrays.asList();
is that supposed to be import java.util.Arrays; ?