Crash with IC2 and IC2 add ons (definitely ic2)

---- Minecraft Crash Report ----
// I blame Dinnerbone.

Time: 10/13/13 2:29 PM
Description: There was a severe problem during mod loading that has caused the game to fail

cpw.mods.fml.common.LoaderException: java.lang.NoSuchFieldError: scrapboxDrops
at cpw.mods.fml.common.LoadController.transition(LoadController.java:149)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:181)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:471)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:806)
at net.minecraft.client.main.Main.main(SourceFile:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)
Caused by: java.lang.NoSuchFieldError: scrapboxDrops
at ic2.core.item.ItemScrapbox.init(ItemScrapbox.java:93)
at ic2.core.IC2.load(IC2.java:1046)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)
at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:313)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)
at com.google.common.eventbus.EventBus.post(EventBus.java:267)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:105)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:520)
... 10 more

A detailed walkthrough of the error, its code path and all known details is as follows:
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-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Mac OS X (x86_64) version 10.8.4
Java Version: 1.6.0_51, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 31613072 bytes (30 MB) / 120188928 bytes (114 MB) up to 1065025536 bytes (1015 MB)
JVM Flags: 1 total; -Xmx1G
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 v8.04 FML v6.2.62.871 Minecraft Forge 9.10.1.871 9 mods loaded, 9 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML{6.2.62.871} [Forge Mod Loader] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized
Forge{9.10.1.871} [Minecraft Forge] (minecraftforge-9.10.1.871.jar) Unloaded->Constructed->Pre-initialized
MFFS{3.2.0} [Modular Force Field System] (MFFS_v3.2.0.205.jar) Unloaded->Constructed->Pre-initialized
IC2{2.0.239-experimental} [IndustrialCraft 2] (industrialcraft-2_2.0.239-experimental.jar) Unloaded->Constructed->Errored
ImmibisCore{56.0.5} [Immibis Core] (immibis-core-56.0.5.jar) Unloaded->Constructed->Pre-initialized
AdvancedMachines{56.0.0} [Advanced Machines] (advanced-machines-56.0.0.jar) Unloaded->Constructed->Errored
CompactSolars{4.4.13.144} [Compact Solar Arrays] (compactsolars-universal.zip) Unloaded->Constructed->Errored
gregtech_addon{MC162} [GregTech-Addon] (gregtech.zip) Unloaded->Constructed->Errored