Battlekit bug D:

2012-11-10 15:46:52 [INFO] Starting minecraft server version 1.4.2
2012-11-10 15:46:52 [WARNING] To start the server with more ram, launch it as "java -Xmx1024M -Xms1024M -jar minecraft_server.jar"
2012-11-10 15:46:52 [INFO] Loading properties
2012-11-10 15:46:52 [INFO] Default game type: SURVIVAL
2012-11-10 15:46:52 [INFO] Generating keypair
2012-11-10 15:46:52 [INFO] Starting Minecraft server on *:25565
2012-11-10 15:46:53 [INFO] This server is running CraftBukkit version git-Bukkit-1.4.2-R0.2-b2455jnks (MC: 1.4.2) (Implementing API version 1.4.2-R0.2)
2012-11-10 15:46:53 [SEVERE] Could not load 'plugins\BattleKits.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.ClassNotFoundException: com.lavacraftserver.BattleKits.BattleKits
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:154)
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
	at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:229)
	at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:205)
	at net.minecraft.server.ServerConfigurationManagerAbstract.<init>(ServerConfigurationManagerAbstract.java:51)
	at net.minecraft.server.ServerConfigurationManager.<init>(SourceFile:11)
	at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:105)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:400)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:818)
Caused by: java.lang.ClassNotFoundException: com.lavacraftserver.BattleKits.BattleKits
	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.findClass(PluginClassLoader.java:44)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:143)
	... 9 more