Strange Problem Running Minecraft 1.7.2 with Forge

[beverleyanne]

Hello, I'm having a strange problem trying to run minecraft 1.7.2 with forge. I am working on a windows 8 system with the latest version of java (currently 8 version 11 I believe, I just downloaded it). Now the strange problem is that minecraft with forge will work for several versions I've tried (1.5, 1.7.10, 1.8, 1.6.4), all expect 1.7.2. There's no error report when I try to launch the game, it's that the game doesn't launch, as if the computer forgot what it was doing (it will immediately open for all other versions).

 

I am running no mods yet, it's just that forge alone will not initiate.

 

I've had experience using forge on my primary computer with several mods in several minecraft versions without any problems, maybe since this is a windows (my primary is a mac) I don't really know what I'm doing? But as I said, forge will successfully run with other versions of minecraft on the windows computer, just not with minecraft 1.7.2

[beverleyanne]

Okay thanks! This is the log I am getting:

 

[10:02:52] [main/INFO] [FML/]: Forge Mod Loader version 7.2.217.1147 for Minecraft 1.7.2 loading

[10:02:52] [main/INFO] [FML/]: Java is Java HotSpot Client VM, version 1.8.0_25, running on Windows 8:x86:6.2, installed at C:\Program Files (x86)\Java\jre1.8.0_25

[10:02:52] [main/DEBUG] [FML/]: Java classpath at launch is C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.7.2-10.12.2.1147\forge-1.7.2-10.12.2.1147.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\bradspear\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147.jar

[10:02:52] [main/DEBUG] [FML/]: Java library path at launch is C:\Users\bradspear\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1147\1.7.2-Forge10.12.2.1147-natives-997032922303913

[10:02:52] [main/DEBUG] [FML/]: Enabling runtime deobfuscation

[10:02:52] [main/DEBUG] [FML/]: Instantiating coremod class FMLCorePlugin

[10:02:52] [main/DEBUG] [FML/]: Added access transformer class cpw.mods.fml.common.asm.transformers.AccessTransformer to enqueued access transformers

[10:02:52] [main/DEBUG] [FML/]: Enqueued coremod FMLCorePlugin

[10:02:52] [main/DEBUG] [FML/]: Instantiating coremod class FMLForgePlugin

[10:02:52] [main/DEBUG] [FML/]: Added access transformer class net.minecraftforge.transformers.ForgeAccessTransformer to enqueued access transformers

[10:02:52] [main/DEBUG] [FML/]: Enqueued coremod FMLForgePlugin

[10:02:52] [main/DEBUG] [FML/]: All fundamental core mods are successfully located

[10:02:52] [main/DEBUG] [FML/]: Discovering coremods

[10:02:52] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[10:02:52] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker

[10:02:52] [main/INFO] [LaunchWrapper/]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[10:02:52] [main/ERROR] [LaunchWrapper/]: Unable to launch

java.util.ConcurrentModificationException

at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_25]

at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_25]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:117) [launchwrapper-1.9.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]

 

Also,  I'm running 1.7.2 because there is a specific map I want to play (Teramia found here: http://www.minecraftforum.net/forums/mapping-and-modding/maps/2076917-teramia-open-world-rpg-mod-edition-download-with) and the modded map is only available as 1.7.2.

[beverleyanne]

Downloaded the Javafix mod and it works! Thank you!