00:37:17  [SEVERE] java.lang.reflect.InvocationTargetException
00:37:17  [SEVERE] 	at sun.reflect.GeneratedConstructorAccessor256.newInstance(Unknown Source)
00:37:17  [SEVERE] 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
00:37:17  [SEVERE] 	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
00:37:17  [SEVERE] 	at net.minecraft.world.SpawnerAnimals.func_77192_a(SpawnerAnimals.java:176)
00:37:17  [SEVERE] 	at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:412)
00:37:17  [SEVERE] 	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:874)
00:37:17  [SEVERE] 	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:327)
00:37:17  [SEVERE] 	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:779)
00:37:17  [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:661)
00:37:17  [SEVERE] 	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
00:37:17  [SEVERE] Caused by: java.lang.NullPointerException
00:37:17  [SEVERE] 	at thaumcraft.common.entities.monster.EntityPech.func_70692_ba(EntityPech.java:335)
00:37:17  [SEVERE] 	at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:77)
00:37:17  [SEVERE] 	at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:45)
00:37:17  [SEVERE] 	at net.minecraft.entity.monster.EntityMob.<init>(EntityMob.java:23)
00:37:17  [SEVERE] 	at thaumcraft.common.entities.monster.EntityPech.<init>(EntityPech.java:87)