Console Log

2014-12-22 19:35:04 [INFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965 for Minecraft 1.6.4 loading
2014-12-22 19:35:04 [INFO] [ForgeModLoader] Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 8.1:amd64:6.3, installed at C:\Program Files\Java\jre1.8.0_25
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Java classpath at launch is cauldron.jar
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Java library path at launch is C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\ProgramData\Oracle\Java\javapath;C:\Program Files\Java\jdk1.7.0_71\bin;C:\Havok\2014.1.0\AnarchySDK\Bin\win32_vs2010_anarchy\dev\DX9;C:\NVPACK\android-sdk-windows\tools;C:\Program Files (x86)\Xoreax\IncrediBuild;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Users\jafca_000\AppData\Roaming\npm;C:\NVPACK\android-sdk-windows\platform-tools;C:\NVPACK\android-sdk-windows\build-tools;C:\NVPACK\android-sdk-windows\tools;C:\NVPACK\jdk1.6.0_45\bin;C:\NVPACK\apache-ant-1.8.2\bin;C:\NVPACK\cygwin\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;;.
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Enabling runtime deobfuscation
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Instantiating coremod class FMLCorePlugin
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Enqueued coremod FMLCorePlugin
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Instantiating coremod class FMLForgePlugin
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Enqueued coremod FMLForgePlugin
2014-12-22 19:35:04 [FINE] [ForgeModLoader] All fundamental core mods are successfully located
2014-12-22 19:35:04 [FINE] [ForgeModLoader] Discovering coremods
2014-12-22 19:35:04 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
2014-12-22 19:35:04 [INFO] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
2014-12-22 19:35:04 [INFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
2014-12-22 19:35:04 [SEVERE] [ForgeModLoader] Unable to launch
java.util.ConcurrentModificationException
	at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
	at java.util.ArrayList$Itr.remove(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
	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.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:43)
	at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)