Can't Load Modpacks

[Bananam55678]

I can't seem to load any modpacks since I installed 64-bit Java (I still have 32-Bit Java as well). I also change the memory from 1GB to 3GB in order to be able to play a modpack without lag. I copied the console onto a document so I could read it easier, and I saw this:

 

[b#439]  2014-11-27 07:53:18 [WARNING] [ForgeModLoader] The coremod mods.battlegear2.coremod.BattlegearLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft

[b#439]  2014-11-27 07:53:18 [WARNING] [ForgeModLoader] The coremod am2.preloader.AM2PreloaderContainer does not have a MCVersion annotation, it may cause issues with this version of Minecraft

[b#439]  2014-11-27 07:53:18 [iNFO] [ForgeModLoader] AMCore initializing...stand back!  I'm going to try MAGIC!

[b#439]  2014-11-27 07:53:18 [WARNING] [ForgeModLoader] The coremod codechicken.core.launch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft

[b#439]  2014-11-27 07:53:21 [WARNING] [ForgeModLoader] The coremod cofh.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft

[b#439]  2014-11-27 07:53:21 [WARNING] [ForgeModLoader] The coremod invtweaks.forge.asm.FMLPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft

[b#439]  2014-11-27 07:53:21 [WARNING] [ForgeModLoader] The coremod codechicken.nei.asm.NEICorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft

[b#439]  2014-11-27 07:53:21 [WARNING] [ForgeModLoader] The coremod optifinefml.OptiFineFMLLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft

 

I also found this:

 

[b#439]  2014-11-27 07:53:21 [sEVERE] [ForgeModLoader] Unable to launch

[b#439]  java.util.ConcurrentModificationException

[b#439]   at java.util.ArrayList$Itr.checkForComodification(Unknown Source)

[b#439]   at java.util.ArrayList$Itr.remove(Unknown Source)

[b#439]   at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)

[b#439]   at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

[b#439]  Java HotSpot 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0

 

What do I do?

[Kalbintion]

See http://www.technicpack.net/article/view/concurrentmodificationexception-in-java-18020.89