Помогите WorldGuard проблема

При командах /rg claim, /rg addmember и тому подобных вылазиет ошибка:
WorldGuard: An unexpected error occured! Please see the server console.
В консоли ошибка:

[WorldGuard] WorldGuard encountered an unexpected error
java.lang.NoSuchMethodError: com.google.common.util.concurrent.MoreExecutors.directExecutor()Ljava/util/concurrent/Executor;
at com.sk89q.worldguard.util.task.SimpleSupervisor.monitor(SimpleSupervisor.java:59) ~[worldguard.jar:?]
at com.sk89q.worldguard.bukkit.commands.AsyncCommandHelper.registerWithSupervisor(AsyncCommandHelper.java:65) ~[worldguard.jar:?]
at com.sk89q.worldguard.bukkit.commands.region.RegionCommands.claim(RegionCommands.java:293) ~[worldguard.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_131]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131]
at com.sk89q.minecraft.util.commands.CommandsManager.invokeMethod(CommandsManager.java:528) ~[worldedit.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:516) ~[worldedit.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:471) ~[worldedit.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.execute(CommandsManager.java:409) ~[worldedit.jar:?]
at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onCommand(WorldGuardPlugin.java:285) [worldguard.jar:?]
at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:54) [worldedit.jar:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:646) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1115) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:950) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_131]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_131]
at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:696) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537) [minecraft_server.jar:git-Spigot-550ebac-7019900]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]