Headhunter1.6.4_error

2013-09-25 06:57:12 [SEVERE] Could not pass event EntityDeathEvent to HeadHunter v1.4.2
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
	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 org.bukkit.craftbukkit.v1_6_R3.event.CraftEventFactory.callEntityDeathEvent(CraftEventFactory.java:327)
	at net.minecraft.server.v1_6_R3.EntityCreeper.dropDeathLoot(EntityCreeper.java:160)
	at net.minecraft.server.v1_6_R3.EntityLiving.die(EntityLiving.java:758)
	at net.minecraft.server.v1_6_R3.EntityCreeper.die(EntityCreeper.java:132)
	at net.minecraft.server.v1_6_R3.EntityLiving.damageEntity(EntityLiving.java:710)
	at net.minecraft.server.v1_6_R3.EntityMonster.damageEntity(EntityMonster.java:39)
	at net.minecraft.server.v1_6_R3.EntityHuman.attack(EntityHuman.java:884)
	at net.minecraft.server.v1_6_R3.PlayerConnection.a(PlayerConnection.java:1121)
	at net.minecraft.server.v1_6_R3.Packet7UseEntity.handle(SourceFile:36)
	at net.minecraft.server.v1_6_R3.Packet7UseEntity$$EnhancerByCGLIB$$48d178d6.CGLIB$handle$0(<generated>)
	at net.minecraft.server.v1_6_R3.Packet7UseEntity$$EnhancerByCGLIB$$48d178d6$$FastClassByCGLIB$$bc697836.invoke(<generated>)
	at com.comphenix.net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
	at com.comphenix.protocol.injector.packet.ReadPacketModifier.intercept(ReadPacketModifier.java:116)
	at net.minecraft.server.v1_6_R3.Packet7UseEntity$$EnhancerByCGLIB$$48d178d6.handle(<generated>)
	at net.minecraft.server.v1_6_R3.NetworkManager.b(NetworkManager.java:296)
	at net.minecraft.server.v1_6_R3.PlayerConnection.e(PlayerConnection.java:116)
	at net.minecraft.server.v1_6_R3.ServerConnection.b(SourceFile:37)
	at net.minecraft.server.v1_6_R3.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:592)
	at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:227)
	at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:488)
	at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:421)
	at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_6_R2/inventory/CraftItemStack
	at com.gmail.scottmwoodward.headhunter.listeners.EntityDeathListener.onMobDeath(EntityDeathListener.java:47)
	at sun.reflect.GeneratedMethodAccessor165.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:425)
	... 26 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_6_R2.inventory.CraftItemStack
	at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:70)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 31 more