Game doesn't load after Forge 1.7.2 installation

[dougpw]

HI Guy's

Thanks in advance for any help offered.

 

My problem is after installing Forge 1.7.2, ( forge-1.7.2-10.12.2.1121-installer-win )    I attempt to start the game with version 1.7.2 Forge 10.12.2.11121 .  the loader will download a "launchwrapper verxx"  then disappear . If I try it again it downloads maybe something else eg " jinput-2-0-5.jar" and does the same.

 

The game loads OK if I choose a standard version.

 

Environment is Windows 7 , Java build 1.8.0_40-b26 ...... logs below

 

>..............................................................................

 

[17:27:32] [main/INFO] [FML/]: Forge Mod Loader version 7.2.211.1121 for Minecraft 1.7.2 loading

[17:27:32] [main/INFO] [FML/]: Java is Java HotSpot Client VM, version 1.8.0_40, running on Windows 7:x86:6.1, installed at C:\Program Files (x86)\Java\jre1.8.0_40

[17:27:32] [main/DEBUG] [FML/]: Java classpath at launch is C:\Users\doug\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.7.2-10.12.2.1121\forge-1.7.2-10.12.2.1121.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\doug\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\doug\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121.jar

[17:27:32] [main/DEBUG] [FML/]: Java library path at launch is C:\Users\doug\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121-natives-1697882932590

[17:27:32] [main/DEBUG] [FML/]: Enabling runtime deobfuscation

[17:27:32] [main/DEBUG] [FML/]: Instantiating coremod class FMLCorePlugin

[17:27:32] [main/DEBUG] [FML/]: Added access transformer class cpw.mods.fml.common.asm.transformers.AccessTransformer to enqueued access transformers

[17:27:32] [main/DEBUG] [FML/]: Enqueued coremod FMLCorePlugin

[17:27:32] [main/DEBUG] [FML/]: Instantiating coremod class FMLForgePlugin

[17:27:32] [main/DEBUG] [FML/]: Added access transformer class net.minecraftforge.transformers.ForgeAccessTransformer to enqueued access transformers

[17:27:32] [main/DEBUG] [FML/]: Enqueued coremod FMLForgePlugin

[17:27:32] [main/DEBUG] [FML/]: All fundamental core mods are successfully located

[17:27:32] [main/DEBUG] [FML/]: Discovering coremods

[17:27:32] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[17:27:32] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker

[17:27:32] [main/INFO] [LaunchWrapper/]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[17:27:32] [main/ERROR] [LaunchWrapper/]: Unable to launch

java.util.ConcurrentModificationException

at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_40]

at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_40]

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:?]

 

 

Looking forward to any suggestions    :)

 

 

[61352151511]

Pretty sure it is an issue with java 8, I know this issue existed with 1.6.4 and they fixed it. Unsure about 1.7.2 and I doubt they ever will fix it if that is the case. Update to 1.7.10, there's no reason to be using 1.7.2 over 1.7.10

[LexManos]

As there is literally no reason to use 1.7.2 and not 1.7.10, considering mods are compatible between the two. There are no plans to bake in the java8 fix to 1.7.2.

1.7.10 already has it, so just update!