>plm load TabListHeader
2013-01-22 16:14:45 [SEVERE] org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: net/minecraft/server/v1_4_R1/Packet
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:182)
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
2013-01-22 16:14:45 [SEVERE]    at net.skycraftmc.PluginManager.PluginControl.loadPlugin(PluginControl.java:72)
2013-01-22 16:14:45 [SEVERE]    at net.skycraftmc.PluginManager.PluginManagerPlugin.onCommand(PluginManagerPlugin.java:206)
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:186)
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.craftbukkit.v1_4_6.CraftServer.dispatchCommand(CraftServer.java:514)
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.craftbukkit.v1_4_6.CraftServer.dispatchServerCommand(CraftServer.java:506)
2013-01-22 16:14:45 [SEVERE]    at net.minecraft.server.v1_4_6.DedicatedServer.al(DedicatedServer.java:260)
2013-01-22 16:14:45 [SEVERE]    at net.minecraft.server.v1_4_6.DedicatedServer.r(DedicatedServer.java:225)
2013-01-22 16:14:45 [SEVERE]    at net.minecraft.server.v1_4_6.MinecraftServer.q(MinecraftServer.java:494)
2013-01-22 16:14:45 [SEVERE]    at net.minecraft.server.v1_4_6.MinecraftServer.run(MinecraftServer.java:427)
2013-01-22 16:14:45 [SEVERE]    at net.minecraft.server.v1_4_6.ThreadServerApplication.run(SourceFile:849)
2013-01-22 16:14:45 [SEVERE] Caused by: java.lang.NoClassDefFoundError: net/minecraft/server/v1_4_R1/Packet
2013-01-22 16:14:45 [SEVERE]    at de.zh32.tablistheader.TabListHeader.<init>(TabListHeader.java:7)
2013-01-22 16:14:45 [SEVERE]    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
2013-01-22 16:14:45 [SEVERE]    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
2013-01-22 16:14:45 [SEVERE]    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
2013-01-22 16:14:45 [SEVERE]    at java.lang.reflect.Constructor.newInstance(Unknown Source)
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:178)
2013-01-22 16:14:45 [SEVERE]    ... 12 more
2013-01-22 16:14:45 [SEVERE] Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_4_R1.Packet
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:70)
2013-01-22 16:14:45 [SEVERE]    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
2013-01-22 16:14:45 [SEVERE]    at java.lang.ClassLoader.loadClass(Unknown Source)
2013-01-22 16:14:45 [SEVERE]    at java.lang.ClassLoader.loadClass(Unknown Source)
2013-01-22 16:14:45 [SEVERE]    ... 18 more
2013-01-22 16:14:45 [INFO] Failed to load TabListHeader!