2011-10-01 16:48:33 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'rankup' in plugin RankUp v1.4
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:41)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:163)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:353)
	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:756)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:721)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:714)
	at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:33)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:92)
	at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:500)
	at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:464)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:417)
Caused by: java.lang.NoSuchMethodError: com.nijiko.permissions.PermissionHandler.getGroupObject(Ljava/lang/String;Ljava/lang/String;)Lcom/nijiko/permissions/Group;
	at me.toalec.RankUp.Permissions.PermissionsYeti.isValidGroup(PermissionsYeti.java:42)
	at me.toalec.RankUp.Permissions.PermissionsManager.isValidGroup(PermissionsManager.java:58)
	at me.toalec.RankUp.CommandTrigger.onCommand(CommandTrigger.java:53)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:39)
	... 13 more