2013-02-26 23:46:12 [INFO] This server is running CraftBukkit version git-Spigot-562 (MC: 1.4.7) (Implementing API version 1.4.7-R1.1-SNAPSHOT)
2013-02-26 23:46:13 [SEVERE] Could not load 'plugins\SkylandsPlus v0.15.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/comphenix/protocol/events/PacketListener
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184)
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:307)
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:231)
	at org.bukkit.craftbukkit.v1_4_R1.CraftServer.loadPlugins(CraftServer.java:262)
	at org.bukkit.craftbukkit.v1_4_R1.CraftServer.<init>(CraftServer.java:240)
	at net.minecraft.server.v1_4_R1.PlayerList.<init>(PlayerList.java:55)
	at net.minecraft.server.v1_4_R1.DedicatedPlayerList.<init>(SourceFile:11)
	at net.minecraft.server.v1_4_R1.DedicatedServer.init(DedicatedServer.java:104)
	at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:405)
	at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.NoClassDefFoundError: com/comphenix/protocol/events/PacketListener
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173)
	... 9 more
Caused by: java.lang.ClassNotFoundException: com.comphenix.protocol.events.PacketListener
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:87)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 12 more