When i try to run the plugin or do any of the commands i get this error: SEVERE: Could not pass event PLAYER_CHAT to Groups java.lang.NoClassDefFoundError: org/bukkit/Color at rmb938.plugins.groups.GroupsPlayerListener.onPlayerChat(Group istener.java:625) at org.bukkit.plugin.java.JavaPluginLoader.callEvent(JavaPluginL va:115) at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginM ava:199) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java at net.minecraft.server.Packet3Chat.a(SourceFile:24) at net.minecraft.server.NetworkManager.a(SourceFile:232) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java at net.minecraft.server.NetworkListenThread.a(SourceFile:104) at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:2 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java at net.minecraft.server.ThreadServerApplication.run(SourceFile:5 I have lots of other plugins but for some reason this one wont work I really need this to add commands for certain people Link To Plugin: http://forums.bukkit.org/threads/groups-group-user-permissions.234/. Bump help please EDIT by Moderator: merged posts, please use the edit button instead of double posting.