Minecraft Crash Report - 1.4.5

---- Minecraft Crash Report ----
// I just don't know what went wrong :(

Time: 06.12.12 14:26
Description: Failed to start game

cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: net/minecraftforge/common/ConfigCategory
	at cpw.mods.fml.common.LoadController.transition(LoadController.java:117)
	at cpw.mods.fml.common.Loader.initializeMods(Loader.java:652)
	at cpw.mods.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:197)
	at net.minecraft.client.Minecraft.a(Minecraft.java:469)
	at net.minecraft.client.Minecraft.run(Minecraft.java:756)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: net/minecraftforge/common/ConfigCategory
	at immibis.core.Config.getBlockID(Config.java:52)
	at immibis.core.api.IDAllocator.RegisterBlockID(IDAllocator.java:12)
	at immibis.ccperiphs.ImmibisPeripherals.load(ImmibisPeripherals.java:65)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:440)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
	at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
	at com.google.common.eventbus.EventBus.post(EventBus.java:268)
	at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:140)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:69)
	at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
	at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)
	at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:300)
	at com.google.common.eventbus.EventBus.post(EventBus.java:268)
	at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:83)
	at cpw.mods.fml.common.Loader.initializeMods(Loader.java:651)
	... 4 more
Caused by: java.lang.ClassNotFoundException: net.minecraftforge.common.ConfigCategory
	at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:141)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 33 more
Caused by: java.lang.NullPointerException
	at org.objectweb.asm.ClassReader.<init>(Unknown Source)
	at net.minecraftforge.transformers.EventTransformer.transform(EventTransformer.java:29)
	at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:178)
	at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:133)
	... 35 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
	Minecraft Version: 1.4.5
	Operating System: Windows 7 (amd64) version 6.1
	Java Version: 1.7.0_09, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 409966992 bytes (390 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 MB)
	JVM Flags: 2 total; -Xms512m -Xmx1024m
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: FML and Forge are installed
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP v7.23 FML v4.5.2.459 Minecraft Forge 6.4.0.397 7 mods loaded, 7 mods active
	mcp [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized
	FML [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
	Forge [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized->Initialized
	ComputerCraft [ComputerCraft] (ComputerCraft1.47.zip) Unloaded->Constructed->Pre-initialized->Initialized
	CCTurtle [ComputerCraft Turtles] (ComputerCraft1.47.zip) Unloaded->Constructed->Pre-initialized->Initialized
	ImmibisCore [Immibis Core] (immibis-core_51.0.4_for_1.4.5.jar) Unloaded->Constructed->Pre-initialized->Initialized
	ImmibisPeripherals [Immibis's Peripherals] (immibis-peripherals_51.0.2_for_1.4.5.jar) Unloaded->Constructed->Pre-initialized->Errored
	LWJGL: 2.4.2
	OpenGL: AMD Radeon HD 6800 Series GL version 4.2.11931 Compatibility Profile Context, ATI Technologies Inc.
	Is Modded: Definitely; Client brand changed to 'forge,fml'
	Type: Client (map_client.txt)
	Texture Pack: Default
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null