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I'm creating a custom mod pack for my friend, when I tried to launch the game this popped up:

---- Minecraft Crash Report ----
// Oops.

Time: 5/20/14 3:31 PM
Description: Initializing game

java.lang.VerifyError: (class: mca/core/MCA, method: preInit signature: (Lcpw/mods/fml/common/event/FMLPreInitializationEvent;)V) Bad type in putfield/putstatic
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:249)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:462)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
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:201)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:181)
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:112)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:511)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:183)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:473)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808)
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:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)


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

-- Head --
Stacktrace:
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:249)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:462)
at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
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:201)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:181)
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:112)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:511)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:183)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:473)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808)
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:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --
Details:
Minecraft Version: 1.6.4
Operating System: Mac OS X (x86_64) version 10.9.2
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 73627672 bytes (70 MB) / 179982336 bytes (171 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 v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 70 mods loaded, 70 mods active
mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed
FML{6.4.49.965} [Forge Mod Loader] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed
Forge{9.11.1.965} [Minecraft Forge] (minecraftforge-9.11.1.965.jar) Unloaded->Constructed
CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed
NotEnoughItems{1.6.1.9} [Not Enough Items] (NotEnoughItems 1.6.1.9.jar) Unloaded->Constructed
TConstruct-Preloader{0.0.1} [Tinkers Corestruct] (minecraft.jar) Unloaded->Constructed
OpenModsCore{@[email protected]} [OpenModsCore] (minecraft.jar) Unloaded->Constructed
Thaumcraft{4.1.0g} [Thaumcraft] (Thaumcraft4) Unloaded->Constructed
Waila{1.5.2a} [Waila] (Waila_1) Unloaded->Constructed
AdvancedThaumaturgy{0.0.28} [Advanced Thaumaturgy] (AdvancedThaumaturgy-1.6.4-0.0.28.jar) Unloaded->Constructed
arsmagica2{1.1.2b} [Ars Magica 2] (AM2_1) Unloaded->Constructed
ATG{0.9.5} [Alternate Terrain Generation] (ATG-1.6.4-0.9.5.jar) Unloaded->Constructed
Autoutils{1.0.1} [Autoutils] (autoutils-1.6.4-1.0.1.jar) Unloaded->Constructed
AncientWarfare{1.1.045-beta-MC164} [Ancient Warfare] (AW-1.1.046-beta-MC164.jar) Unloaded->Constructed
AncientStructures{1.1.045-beta-MC164} [Ancient Warfare Structures Module] (AW-1.1.046-beta-MC164.jar) Unloaded->Constructed
BetterDungeons{2.4} [Chocolate quest] (BetterDungeons2091.zip) Unloaded->Constructed
betterstorage{0.8.0.43} [BetterStorage] (BetterStorage-1.6.4-0.8.0.45.jar) Unloaded->Constructed
BiblioCraft{1.5.5} [BiblioCraft] (BiblioCraft[v1) Unloaded->Constructed
BiomesOPlenty{1.2.1} [Biomes O' Plenty] (BiomesOPlenty-universal-1.6.4-1.2.1.434.jar) Unloaded->Constructed
BiblioWoodsBoP{1.3} [BiblioWoods Biomes O'Plenty Edition] (BiblioWoods[BiomesOPlenty][v1) Unloaded->Constructed
AWWayofTime{v0.5.1} [Blood Magic: Alchemical Wizardry] (Blood Magic v0) Unloaded->Constructed
bludecorations{1.2.2} [BluDecorations] (BluDecorations-1.6.4-1.2.2.jar) Unloaded->Constructed
CarpentersBlocks{2.0.9} [Carpenter's Blocks] (Carpenter's Blocks v2) Unloaded->Constructed
Chisel{1.5.0} [Chisel] (chisel-1.6.4-1.5.0fix.jar) Unloaded->Constructed
EnderStorage{1.4.3.6} [EnderStorage] (EnderStorage 1.4.3.6.jar) Unloaded->Constructed
EE3{0.1} [Equivalent Exchange 3] (EquivalentExchange3-1.6.4-0.1.140.jar) Unloaded->Constructed
KeithyUtils{1.2} [Keithy Utils] (keithyutils) Unloaded->Errored
Metallurgy3Core{3.2.3} [Metallurgy 3 Core] (Metallurgy-1.6.4-3.3.2.jar) Unloaded->Errored
Metallurgy3Base{3.2.3} [Metallurgy 3 Base] (Metallurgy-1.6.4-3.3.2.jar) Unloaded->Errored
ForgeMultipart{1.0.0.244} [Forge Multipart] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed
TConstruct{1.6.X_1.5.5.7} [Tinkers' Construct] (TConstruct_mc1.6.4_1.5.5.7.jar) Unloaded->Constructed
ExtraTiC{0.8.0} [ExtraTiC] (ExtraTiC-1.6.4-0.8.0.jar) Unloaded->Constructed
ExtraUtilities{1.0.3c} [Extra Utilities] (extrautils-1) Unloaded->Constructed
Hats{2.1.7} [Hats] (Hats2) Unloaded->Constructed
magicalcrops{3.2.1} [Magical Crops] (magical_crops_1) Unloaded->Constructed
standardcrops{1.1.0} [Magical Crops - Crops & Food] (magical_crops_1) Unloaded->Constructed
mca{3.6.0} [Minecraft Comes Alive] (MCA-3) Unloaded
Metallurgy3Machines{3.2.3} [Metallurgy 3 Machines] (Metallurgy-1.6.4-3.3.2.jar) Unloaded
Metallurgy3Vanilla{3.2.3} [Metallurgy 3 Vanilla] (Metallurgy-1.6.4-3.3.2.jar) Unloaded
Morph{0.7.1} [Morph] (Morph-Beta-0) Unloaded
Mystcraft{0.10.13.01} [Mystcraft] (mystcraft-uni-1) Unloaded
ObsidiPlates{2.0.0} [Obsidian Pressure Plates] (obsidiplates-1.6.2-universal-2.0.0.15.jar) Unloaded
OpenMods{0.5} [OpenMods] (OpenModsLib-0.5.jar) Unloaded
OpenBlocks{1.2.8} [OpenBlocks] (OpenBlocks-1.2.8.jar) Unloaded
pamharvestcraft{1.0} [Pam's HarvestCraft Base] (Pam's HarvestCraft 1) Unloaded
ProjRed|Core{4.3.7.32} [ProjectRed] (ProjectRedBase-1.6.4-4.3.7.32.jar) Unloaded
ProjRed|Transmission{4.3.7.32} [ProjectRed-Transmission] (ProjectRedIntegration-1.6.4-4.3.7.32.jar) Unloaded
ProjRed|Transportation{4.3.7.32} [ProjectRed-Transportation] (ProjectRedMechanical-BETA-1.6.4-4.3.7.32.jar) Unloaded
ProjRed|Exploration{4.3.7.32} [ProjectRed-Exploration] (ProjectRedWorld-1.6.4-4.3.7.32.jar) Unloaded
ProjRed|Compatibility{4.3.7.32} [ProjectRed-Compatibility] (ProjectRedCompat-1.6.4-4.3.7.32.jar) Unloaded
ProjRed|Integration{4.3.7.32} [ProjectRed-Integration] (ProjectRedIntegration-1.6.4-4.3.7.32.jar) Unloaded
ProjRed|Illumination{4.3.7.32} [ProjectRed-Illumination] (ProjectRedLighting-1.6.4-4.3.7.32.jar) Unloaded
ProjRed|Expansion{4.3.7.32} [ProjectRed-Expansion] (ProjectRedMechanical-BETA-1.6.4-4.3.7.32.jar) Unloaded
AncientWarfareNeiPlugin{1.1.002-alpha-MC164} [Ancient WarfareNeiPlugin] (shadowmage) Unloaded
awger_SmallBoat{0.10.6} [SmallBoat] (smallboats.0.10.6.jar) Unloaded
awger_Punt{0.10.6} [Punt] (smallboats.0.10.6.jar) Unloaded
awger_Whitehall{0.10.6} [Whitehall] (smallboats.0.10.6.jar) Unloaded
awger_Hoy{0.10.6} [Hoy] (smallboats.0.10.6.jar) Unloaded
Statues{2.1.1} [Statues] (statues-1.6.4-2.1.1.jar) Unloaded
taleofkingdoms{1.5-Pre Release} [Tale of Kingdoms] (TaleOfKingdomsMod1) Unloaded
ThaumicTinkerer{2.3-140} [Thaumic Tinkerer] (ThaumicTinkerer-2.3-140.jar) Unloaded
ThaumicExploration{0.5.1} [Thaumic Exploration] (Thaumic Exploration 0.5.2.jar) Unloaded
TiCTooltips{1.1.6} [TiC Tooltips] (TiCTooltips-mc1.6.4-1.1.6.jar) Unloaded
TMechworks{33.c001660} [Tinkers' Mechworks] (TMechworks_mc1.6.4_0.1.6.jar) Unloaded
TwilightForest{1.20.5} [The Twilight Forest] (twilightforest-1.6.4-1.20.5.jar) Unloaded
iChunUtil{2.4.0} [iChunUtil] (util^iChunUtil2) Unloaded
Waypoints{1.0.2} [Waypoints] (waypoints-1.6.4-1.0.2fix.jar) Unloaded
witchery{0.18.4} [Witchery] (witchery-1) Unloaded
McMultipart{1.0.0.244} [Minecraft Multipart Plugin] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded
ForgeMicroblock{1.0.0.244} [Forge Microblocks] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded
TConstruct Environment: Sane and ready for action. Bugs may be reported.
Launched Version: 1.6.4-Forge9.11.1.965
LWJGL: 2.9.0
OpenGL: NVIDIA GeForce GT 755M OpenGL Engine GL version 2.1 NVIDIA-8.24.9 310.40.25f01, NVIDIA Corporation
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Pack: Default
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

I just need to know what the problem is. If anyone can help, that would be great.