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java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_8_R1.entity.CraftEntity	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91)	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at me.blackvein.quests.util.QuestMob.spawn(QuestMob.java:107)	at me.blackvein.quests.Event.fire(Event.java:252)	at me.blackvein.quests.Quest.setStage(Quest.java:155)	at me.blackvein.quests.Quest.nextStage(Quest.java:114)	at me.blackvein.quests.Quester.finishObjective(Quester.java:1522)	at me.blackvein.quests.Quester.reachLocation(Quester.java:1223)	at me.blackvein.quests.PlayerListener.onPlayerMove(PlayerListener.java:1006)	at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)	at net.minecraft.server.v1_9_R1.PlayerConnection.a(PlayerConnection.java:608)	at net.minecraft.server.v1_9_R1.PacketPlayInFlying.a(SourceFile:126)	at net.minecraft.server.v1_9_R1.PacketPlayInFlying$PacketPlayInPositionLook.a(SourceFile:18)	at net.minecraft.server.v1_9_R1.PlayerConnectionUtils$1.run(SourceFile:13)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:45)	at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:721)	at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400)	at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660)	at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559)	at java.lang.Thread.run(Thread.java:745)