[16:17:17] [Server thread/ERROR]: Could not pass event PlayerMoveEvent to QuestMonsterCore v1.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.PlayerConnection.a(PlayerConnection.java:270) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.PacketPlayInFlying.a(SourceFile:126) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.PacketPlayInFlying$PacketPlayInPosition.a(SourceFile:57) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-870264a-0a645a2]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_20]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_20]
	at net.minecraft.server.v1_8_R2.SystemUtils.a(SourceFile:60) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:712) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [spigot.jar:git-Spigot-870264a-0a645a2]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_20]
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_8_R1/entity/CraftCreature
	at core.test.TestAPI.walktoLocation(TestAPI.java:25) ~[?:?]
	at core.test.LISRTENER_Follow.onMove(LISRTENER_Follow.java:30) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_20]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_20]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_20]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_20]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	... 15 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_8_R1.entity.CraftCreature
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_20]
	at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_20]
	at core.test.TestAPI.walktoLocation(TestAPI.java:25) ~[?:?]
	at core.test.LISRTENER_Follow.onMove(LISRTENER_Follow.java:30) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_20]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_20]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_20]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_20]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	... 15 more