thepistoncastIm working on a modpack. This popped up. Help?

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---- Minecraft Crash Report ----
// I let you down. Sorry

Time: 9/28/14 1:18 PM
Description: Initializing game

java.lang.NoClassDefFoundError: cpw/mods/fml/common/network/Player
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getDeclaredMethods(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.gatherAnnotations(FMLModContainer.java:297)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:485)
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.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187)
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.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:492)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:867)
at net.minecraft.client.main.Main.main(SourceFile:148)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.common.network.Player
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 37 more
Caused by: java.lang.NullPointerException


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

-- Head --
Stacktrace:
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getDeclaredMethods(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.gatherAnnotations(FMLModContainer.java:297)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:485)
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.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:208)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187)
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.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:118)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:492)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:480)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:867)
at net.minecraft.client.main.Main.main(SourceFile:148)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.7.10
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.7.0_55, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 73419040 bytes (70 MB) / 280678400 bytes (267 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP v9.05 FML v7.10.84.1217 Minecraft Forge 10.13.1.1217 34 mods loaded, 34 mods active
mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed
FML{7.10.84.1217} [Forge Mod Loader] (forge-1.7.10-10.13.1.1217.jar) Unloaded->Constructed
Forge{10.13.1.1217} [Minecraft Forge] (forge-1.7.10-10.13.1.1217.jar) Unloaded->Constructed
CodeChickenCore{1.0.2.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed
<CoFH ASM>{000} [CoFH ASM Data Initialization] (minecraft.jar) Unloaded->Constructed
NotEnoughItems{1.0.2.15} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.2.15-universal.jar) Unloaded->Constructed
lucky{5.1.0} [Lucky Block] ([1-7-10]_Lucky_Block_v5-1-0.jar) Unloaded->Constructed
DamageIndicatorsMod{3.2.0} [Damage Indicators] ([1.7.10]DamageIndicatorsMod-3.2.0.jar) Unloaded->Constructed
Backpack{2.0.0} [Backpack] (backpack-2.0.0-1.7.x.jar) Unloaded->Constructed
AWWayofTime{v1.0.1g} [Blood Magic: Alchemical Wizardry] (Blood Magic-v1.1.0(1.7.10).jar) Unloaded->Constructed
BuildCraft|Core{6.0.18} [BuildCraft] (buildcraft-6.0.18.jar) Unloaded->Constructed
BuildCraft|Builders{6.0.18} [BC Builders] (buildcraft-6.0.18.jar) Unloaded->Constructed
BuildCraft|Energy{6.0.18} [BC Energy] (buildcraft-6.0.18.jar) Unloaded->Constructed
BuildCraft|Factory{6.0.18} [BC Factory] (buildcraft-6.0.18.jar) Unloaded->Constructed
BuildCraft|Transport{6.0.18} [BC Transport] (buildcraft-6.0.18.jar) Unloaded->Constructed
BuildCraft|Silicon{6.0.18} [BC Silicon] (buildcraft-6.0.18.jar) Unloaded->Constructed
CoFHCore{1.7.10R3.0.0B6} [CoFH Core] (CoFHCore-[1.7.10]3.0.0B6-32.jar) Unloaded->Constructed
ComputerCraft{1.63} [ComputerCraft] (ComputerCraft1.63.jar) Unloaded
customnpcs{1.7.10b} [CustomNpcs] (CustomNPCs_1.7.10b.jar) Unloaded
JinRyuu_DragonBlockC{1.0.17} [Dragon Block C] (DragonBlockC-Universal-v1.0.17.zip) Unloaded
MetallurgyCore{4.0.3} [Metallurgy Core] (MetallurgyCore-1.7.10-4.0.3.11.jar) Unloaded
Metallurgy{4.0.4} [Metallurgy 4] (Metallurgy-1.7.10-4.0.4.43.jar) Unloaded
battlegear2{1.0.5.6} [Mine & Blade Battlegear 2 - Bullseye] (Mine-Blade-Battlegear-2-Mod-1.7.10.jar) Unloaded
Mystcraft{0.10.15.00} [Mystcraft] (mystcraft-1.7.2-0.10.15.00.jar) Unloaded
Natura{2.1.14} [Natura] (natura_mc1.6.X_2.1.14.jar) Unloaded
telepads{1.6.4 v5} [Teleportation Pads] (TelePads-Mod-1.7.2.jar) Unloaded
Baubles{1.0.1.7} [Baubles] (Baubles-1.7.10-1.0.1.7.jar) Unloaded
Thaumcraft{4.2.0.1} [Thaumcraft] (Thaumcraft-1.7.10-4.2.0.1.jar) Unloaded
RioV{v2.4.2} [The Mists of RioV] (The Mists of RioV - v2.4.2.jar) Unloaded
ThermalFoundation{1.7.10R1.0.0B3} [Thermal Foundation] (ThermalFoundation-[1.7.10]1.0.0B3-8.jar) Unloaded
ThermalExpansion{1.7.10R4.0.0B5} [Thermal Expansion] (ThermalExpansion-[1.7.10]4.0.0B5-13.jar) Unloaded
ForgeMultipart{1.1.0.297} [Forge Multipart] (ForgeMultipart-1.7.10-1.1.0.297-universal.jar) Unloaded
McMultipart{1.1.0.297} [Minecraft Multipart Plugin] (ForgeMultipart-1.7.10-1.1.0.297-universal.jar) Unloaded
ForgeMicroblock{1.1.0.297} [Forge Microblocks] (ForgeMultipart-1.7.10-1.1.0.297-universal.jar) Unloaded
Launched Version: 1.7.10-Forge10.13.1.1217
LWJGL: 2.9.1
OpenGL: GeForce 310M/PCI/SSE2 GL version 3.1 NVIDIA 189.25, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: []
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Anisotropic Filtering: Off (1)