2012-12-16 18:54:19 [SEVERE] Could not pass event EntityDamageEvent to Monster Apocalypse v<0.0.1>
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:341)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
	at net.minecraft.server.v1_4_5.EntityLiving.y(EntityLiving.java:317)
	at net.minecraft.server.v1_4_5.Entity.j_(Entity.java:237)
	at net.minecraft.server.v1_4_5.EntityLiving.j_(EntityLiving.java:482)
	at net.minecraft.server.v1_4_5.EntityMonster.j_(EntityMonster.java:24)
	at net.minecraft.server.v1_4_5.EntityZombie.j_(EntityZombie.java:121)
	at net.minecraft.server.v1_4_5.World.entityJoinedWorld(World.java:1333)
	at net.minecraft.server.v1_4_5.WorldServer.entityJoinedWorld(WorldServer.java:546)
	at net.minecraft.server.v1_4_5.World.playerJoinedWorld(World.java:1315)
	at net.minecraft.server.v1_4_5.World.tickEntities(World.java:1193)
	at net.minecraft.server.v1_4_5.WorldServer.tickEntities(WorldServer.java:444)
	at net.minecraft.server.v1_4_5.MinecraftServer.r(MinecraftServer.java:579)
	at net.minecraft.server.v1_4_5.DedicatedServer.r(DedicatedServer.java:222)
	at net.minecraft.server.v1_4_5.MinecraftServer.q(MinecraftServer.java:493)
	at net.minecraft.server.v1_4_5.MinecraftServer.run(MinecraftServer.java:426)
	at net.minecraft.server.v1_4_5.ThreadServerApplication.run(SourceFile:856)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/entity/CraftArrow
	at blainicus.MonsterApocalypse.DamageListener.onEntityDamage(DamageListener.java:69)
	at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:339)
	... 18 more