forgecrash

014-06-23 16:25:31 [INFO] [ForgeModLoader] Forge Mod Loader has successfully loaded 222 mods
2014-06-23 16:25:31 [FINE] [ForgeModLoader] Runtime patching class net/minecraft/world/chunk/storage/ChunkLoader (input size 2760), found 1 patch
2014-06-23 16:25:31 [FINE] [ForgeModLoader] Successfully applied runtime patches for net/minecraft/world/chunk/storage/ChunkLoader (new size 3602)
2014-06-23 16:25:31 [SEVERE] [ForgeModLoader] A fatal exception occurred during the server about to start event
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at com.google.common.base.Throwables.propagate(Throwables.java:160)
	at cpw.mods.fml.common.LoaderState.getEvent(LoaderState.java:88)
	at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:111)
	at cpw.mods.fml.common.Loader.serverAboutToStart(Loader.java:805)
	at cpw.mods.fml.common.FMLCommonHandler.handleServerAboutToStart(FMLCommonHandler.java:324)
	at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:222)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:626)
	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at cpw.mods.fml.common.LoaderState.getEvent(LoaderState.java:84)
	... 6 more
Caused by: java.lang.NoClassDefFoundError: net/md_5/specialsource/transformer/MappingTransformer
	at java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.lang.Class.privateGetDeclaredConstructors(Class.java:2493)
	at java.lang.Class.getConstructor0(Class.java:2803)
	at java.lang.Class.getConstructor(Class.java:1718)
	at org.bukkit.plugin.SimplePluginManager.registerInterface(SimplePluginManager.java:75)
	at org.bukkit.craftbukkit.v1_6_R3.CraftServer.loadPlugins(CraftServer.java:222)
	at cpw.mods.fml.common.event.FMLServerAboutToStartEvent.<init>(FMLServerAboutToStartEvent.java:29)
	... 11 more
Caused by: java.lang.ClassNotFoundException: net.md_5.specialsource.transformer.MappingTransformer
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	... 18 more
Caused by: java.lang.NullPointerException