Hi guys i played now minecraft 1.6.4 and when i install forge 9.11.1.865 dont load only appear on launcher this:
ene 07, 2015 4:06:25 PM net.minecraft.launchwrapper.LogWrapper log
INFORMACIÓN: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
ene 07, 2015 4:06:25 PM net.minecraft.launchwrapper.LogWrapper log
INFORMACIÓN: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
ene 07, 2015 4:06:25 PM net.minecraft.launchwrapper.LogWrapper log
INFORMACIÓN: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
2015-01-07 16:06:25 [iNFORMACIÓN] [ForgeModLoader] Forge Mod Loader version 6.4.49.965 for Minecraft 1.6.4 loading
2015-01-07 16:06:25 [iNFORMACIÓN] [ForgeModLoader] Java is Java HotSpot 64-Bit Server VM, version 1.8.0_25, running on Windows 7:amd64:6.1, installed at C:\Program Files\Java\jre1.8.0_25
2015-01-07 16:06:25 [iNFORMACIÓN] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
2015-01-07 16:06:25 [iNFORMACIÓN] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
2015-01-07 16:06:25 [iNFORMACIÓN] [ForgeModLoader] Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
2015-01-07 16:06:25 [GRAVE] [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)
Java HotSpot 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
Any one can help?txs