Server startup problems

[reetry91]

Title: Server startup problems

Version: 3.0.3/3.0.4

OS: Debian 5.0

Java Version: 1.7

Description of Problem:

When i start the server it loads some mods, but it always creates an error and stops the server and restarts it again and again and again and again... i think you get the point.

Error Messages:

[sEVERE] Unexpected exception java.lang.NoClassDefFoundError: codechicken/core/IGuiPacketSender

Error Log:

[sEVERE] java.lang.NoClassDefFoundError: codechicken/core/IGuiPacketSender

[sEVERE] 	at java.lang.Class.getDeclaredFields0(Native Method)

[sEVERE] 	at java.lang.Class.privateGetDeclaredFields(Class.java:2308)

[sEVERE] 	at java.lang.Class.getDeclaredFields(Class.java:1760)

 [sEVERE] 	at cpw.mods.fml.server.ModLoaderModContainer.configureMod(ModLoaderModContainer.java:114)

 [sEVERE] 	at cpw.mods.fml.server.ModLoaderModContainer.preInit(ModLoaderModContainer.java:73)

[sEVERE] 	at cpw.mods.fml.common.Loader.preModInit(Loader.java:201)

[sEVERE] 	at cpw.mods.fml.common.Loader.loadMods(Loader.java:528)

[sEVERE] 	at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113)

[sEVERE] 	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118)

[sEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)

[sEVERE] 	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

[sEVERE] Caused by: java.lang.ClassNotFoundException: codechicken.core.IGuiPacketSender

[sEVERE] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

[sEVERE] 	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

[sEVERE] 	at java.security.AccessController.doPrivileged(Native Method)

[sEVERE] 	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

[sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)

[sEVERE] 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

[sEVERE] 	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)

[sEVERE] 	... 11 more

[sEVERE] Unexpected exception

java.lang.NoClassDefFoundError: codechicken/core/IGuiPacketSender

	at java.lang.Class.getDeclaredFields0(Native Method)

	at java.lang.Class.privateGetDeclaredFields(Class.java:2308)

	at java.lang.Class.getDeclaredFields(Class.java:1760)

	at cpw.mods.fml.server.ModLoaderModContainer.configureMod(ModLoaderModContainer.java:114)

	at cpw.mods.fml.server.ModLoaderModContainer.preInit(ModLoaderModContainer.java:73)

	at cpw.mods.fml.common.Loader.preModInit(Loader.java:201)

	at cpw.mods.fml.common.Loader.loadMods(Loader.java:528)

	at cpw.mods.fml.server.FMLBukkitHandler.onPreLoad(FMLBukkitHandler.java:113)

	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:118)

	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)

	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

Caused by: java.lang.ClassNotFoundException: codechicken.core.IGuiPacketSender

	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)

	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)

	at java.security.AccessController.doPrivileged(Native Method)

	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:423)

	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)

	at java.lang.ClassLoader.loadClass(ClassLoader.java:356)

	... 11 more