[09:02:48 WARN]: java.lang.reflect.InvocationTargetException
[09:02:48 WARN]:        at sun.reflect.GeneratedConstructorAccessor154.newInstance(Unknown Source)
[09:02:48 WARN]:        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[09:02:48 WARN]:        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
[09:02:48 WARN]:        at net.minecraft.entity.EntityList.func_75616_a(EntityList.java:200)
[09:02:48 WARN]:        at net.minecraft.item.ItemMonsterPlacer.func_77840_a(ItemMonsterPlacer.java:162)
[09:02:48 WARN]:        at net.minecraft.item.ItemMonsterPlacer.func_77648_a(ItemMonsterPlacer.java:75)
[09:02:48 WARN]:        at net.minecraft.item.ItemStack.func_77943_a(ItemStack.java:170)
[09:02:48 WARN]:        at net.minecraft.server.management.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:489)
[09:02:48 WARN]:        at net.minecraft.network.NetHandlerPlayServer.func_147346_a(NetHandlerPlayServer.java:872)
[09:02:48 WARN]:        at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:60)
[09:02:48 WARN]:        at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.func_148833_a(SourceFile:9)
[09:02:48 WARN]:        at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244)
[09:02:48 WARN]:        at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173)
[09:02:48 WARN]:        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:973)
[09:02:48 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:422)
[09:02:48 WARN]:        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:803)
[09:02:48 WARN]:        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:663)
[09:02:48 WARN]:        at java.lang.Thread.run(Thread.java:744)
[09:02:48 WARN]: Caused by: java.lang.NoSuchMethodError: com.mojang.authlib.GameProfile.<init>(Ljava/lang/String;Ljava/lang/String;)V
[09:02:48 WARN]:        at net.lomeli.ec.entity.addon.EntityEUCreeper.<init>(EntityEUCreeper.java:29)
[09:02:48 WARN]:        ... 18 more
[09:02:48 WARN]: Skipping Entity with id 71