iAm1nsaN3X Posted October 13, 2014 Share Posted October 13, 2014 Oct 13, 2014 1:12:51 PM net.minecraft.launchwrapper.LogWrapper log INFO: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker Oct 13, 2014 1:12:52 PM net.minecraft.launchwrapper.LogWrapper log INFO: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker Oct 13, 2014 1:12:52 PM net.minecraft.launchwrapper.LogWrapper log INFO: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker 2014-10-13 13:12:52 [iNFO] [ForgeModLoader] Forge Mod Loader version 6.4.49.965 for Minecraft 1.6.4 loading 2014-10-13 13:12:52 [iNFO] [ForgeModLoader] Java is Java HotSpot 64-Bit Server VM, version 1.8.0_20, running on Windows 7:amd64:6.1, installed at C:\Program Files\Java\jre1.8.0_20 2014-10-13 13:12:52 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker 2014-10-13 13:12:52 [iNFO] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker 2014-10-13 13:12:52 [iNFO] [ForgeModLoader] Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker 2014-10-13 13:12:52 [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) Picked up _JAVA_OPTIONS: -Djava.net.preferIPv4Stack=true Java HotSpot 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release ---- This keeps on happening for every mod pack I run with even other versions of forge, I have looked for fixes on Google but it seems like not many people know how to answer this problem... Quote Link to comment Share on other sites More sharing options...
iAm1nsaN3X Posted October 13, 2014 Author Share Posted October 13, 2014 I found a semi-fix for this. I just downgraded Java 1.8.0_20 to Java 1.8.0_11. I found a post that was similar to mine and an admin replied that there's a bug with Java 1.8.0_20: Here's the link: http://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html#jre-8u11-oth-JPR Quote Link to comment Share on other sites More sharing options...
shieldbug1 Posted October 13, 2014 Share Posted October 13, 2014 You don't actually have to downgrade. This issue has been fixed for at least a month - you just have to update to the latest forge version. Quote BEFORE ASKING FOR HELP READ THE EAQ! I'll help if I can. Apologies if I do something obviously stupid. If you don't know basic Java yet, go and follow these tutorials. Link to comment Share on other sites More sharing options...
LexManos Posted October 14, 2014 Share Posted October 14, 2014 https://github.com/LexManos/LegacyJavaFixer http://files.minecraftforge.net/LegacyJavaFixer/legacyjavafixer-1.0.jar Its under the DONT FUCKING BOTHER ME JUST FUCKING USE IT license {technically MIT but people never read that} Quote I do Forge for free, however the servers to run it arn't free, so anything is appreciated. Consider supporting the team on Patreon Link to comment Share on other sites More sharing options...
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