Anyone know what wrong here?
Any help is much appreciated!
2015-03-28 19:40:43 [iNFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965 for Minecraft 1.6.4 loading
2015-03-28 19:40:43 [iNFO] [ForgeModLoader] Java is Java HotSpot Client VM, version 1.8.0_25, running on Windows 7:x86:6.1, installed at C:\Program Files (x86)\Java\jre1.8.0_25
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Java classpath at launch is C:\Users\Kai\Desktop\New Pack Server\minecraftforge-universal-1.6.4-9.11.1.965-v164-pregradle.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Java library path at launch is C:\Program Files (x86)\Java\jre1.8.0_25\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\Google\Chrome\Application;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\ProgramData\Oracle\Java\javapath;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\Internet Explorer;C:\Program Files\Internet Explorer;C:\Program Files (x86)\Windows Live\Shared;C:\adb;C:\Program Files (x86)\Skype\Phone\;.
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enabling runtime deobfuscation
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class FMLCorePlugin
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod FMLCorePlugin
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class FMLForgePlugin
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod FMLForgePlugin
2015-03-28 19:40:43 [FINE] [ForgeModLoader] All fundamental core mods are successfully located
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Discovering coremods
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy CodeChickenLib-universal-1.6.4-1.0.0.62.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Not found coremod data in CodeChickenLib-universal-1.6.4-1.0.0.62.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy ForgeMultipart-universal-1.6.4-1.0.0.219.jar
2015-03-28 19:40:43 [FINEST] [ForgeModLoader] Found FMLCorePluginContainsFMLMod marker in ForgeMultipart-universal-1.6.4-1.0.0.219.jar, it will be examined later for regular @Mod instances
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class DepLoader
2015-03-28 19:40:43 [WARNING] [ForgeModLoader] The coremod codechicken.core.launch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod DepLoader
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy appeng-rv14-finale3-mc16x.jar
2015-03-28 19:40:43 [FINEST] [ForgeModLoader] Found FMLCorePluginContainsFMLMod marker in appeng-rv14-finale3-mc16x.jar, it will be examined later for regular @Mod instances
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class AppEngCore
2015-03-28 19:40:43 [WARNING] [ForgeModLoader] The coremod appeng.transformer.AppEngCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2015-03-28 19:40:43 [iNFO] [ForgeModLoader] [AppEng] Core Init
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod AppEngCore
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy buildcraft-A-1.6.4-4.2.2.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Not found coremod data in buildcraft-A-1.6.4-4.2.2.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy CodeChickenCore-1.6.4-0.9.0.9-universal.jar
2015-03-28 19:40:43 [FINEST] [ForgeModLoader] Adding CodeChickenCore-1.6.4-0.9.0.9-universal.jar to the list of known coremods, it will not be examined again
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class CodeChickenCorePlugin
2015-03-28 19:40:43 [WARNING] [ForgeModLoader] The coremod codechicken.core.launch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod CodeChickenCorePlugin
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy CoFHCore-2.0.0.5.jar
2015-03-28 19:40:43 [FINEST] [ForgeModLoader] Found FMLCorePluginContainsFMLMod marker in CoFHCore-2.0.0.5.jar, it will be examined later for regular @Mod instances
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class LoadingPlugin
2015-03-28 19:40:43 [WARNING] [ForgeModLoader] The coremod cofh.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod LoadingPlugin
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy MineFactoryReloaded-2.7.9-final.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Not found coremod data in MineFactoryReloaded-2.7.9-final.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy neiaddons-mc164-1.10.5.70.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Not found coremod data in neiaddons-mc164-1.10.5.70.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy NotEnoughItems-1.6.4-1.6.1.9-universal.jar
2015-03-28 19:40:43 [FINEST] [ForgeModLoader] Adding NotEnoughItems-1.6.4-1.6.1.9-universal.jar to the list of known coremods, it will not be examined again
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class NEICorePlugin
2015-03-28 19:40:43 [WARNING] [ForgeModLoader] The coremod codechicken.nei.asm.NEICorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod NEICorePlugin
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy PowerCrystalsCore-1.1.8-9.jar
2015-03-28 19:40:43 [FINEST] [ForgeModLoader] Adding PowerCrystalsCore-1.1.8-9.jar to the list of known coremods, it will not be examined again
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class CoreLoader
2015-03-28 19:40:43 [FINE] [ForgeModLoader] The coremod powercrystals.core.CoreLoader requested minecraft version 1.6.4 and minecraft is 1.6.4. It will be loaded.
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod CoreLoader
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy SimplyJetpacks-0.3.1.1.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Not found coremod data in SimplyJetpacks-0.3.1.1.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy TConstruct_mc1.6.4_1.5.5.7.jar
2015-03-28 19:40:43 [FINEST] [ForgeModLoader] Found FMLCorePluginContainsFMLMod marker in TConstruct_mc1.6.4_1.5.5.7.jar, it will be examined later for regular @Mod instances
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Instantiating coremod class TConstructLoaderContainer
2015-03-28 19:40:43 [WARNING] [ForgeModLoader] The coremod tconstruct.preloader.TConstructLoaderContainer does not have a MCVersion annotation, it may cause issues with this version of Minecraft
2015-03-28 19:40:43 [iNFO] [TCon-Preloader] Scalpel. Suction. Lumber axe. CLEAR! *zap*
2015-03-28 19:40:43 [iNFO] [TCon-Preloader] Constructing preloader (Modules: [tconstruct.preloader.AccessTransformers, tconstruct.preloader.ASMInterfaceRepair])
2015-03-28 19:40:43 [iNFO] [TCon-Preloader] Creating new properties file, as none found...
2015-03-28 19:40:43 [iNFO] [TCon-Preloader] Created properties file; using defaults this run.
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Enqueued coremod TConstructLoaderContainer
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Examining for coremod candidacy ThermalExpansion-3.0.0.7.jar
2015-03-28 19:40:43 [FINE] [ForgeModLoader] Not found coremod data in ThermalExpansion-3.0.0.7.jar
2015-03-28 19:40:43 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
2015-03-28 19:40:43 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
2015-03-28 19:40:43 [iNFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
2015-03-28 19:40:43 [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:48)
at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:17)
