Forge won't launch

[PharaohMo]

Hello, I keep trying to launch minecraft with forge installed (1.7.2 recommended build) but after I hit play, it closes the launcher but minecraft never opens up. I have tried completely deleting the .minecraft folder(removing all minecraft setting) and re downloading 1.7.2 and trying again but it never works. I have also tried the 1.7.2 latest build of forge but it doesn't seem to work. I don't even have any mods installed when I try, it still doesn't work. I also tried using technic modpacks and those don't work either when I try opening any technic modpack.

 

fml-client-latest.txt in the minecraft logs folder

[16:47:53] [main/INFO] [FML/]: Forge Mod Loader version 7.2.211.1121 for Minecraft 1.7.2 loading
[16:47:53] [main/INFO] [FML/]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_20, running on Windows 8.1:amd64:6.3, installed at C:\Program Files\Java\jre1.8.0_20
[16:47:53] [main/DEBUG] [FML/]: Java classpath at launch is C:\Users\Amal Ali\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\Amal Ali\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\Amal Ali\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121.jar
[16:47:53] [main/DEBUG] [FML/]: Java library path at launch is C:\Users\Amal Ali\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121-natives-336235010770
[16:47:53] [main/DEBUG] [FML/]: Enabling runtime deobfuscation
[16:47:53] [main/DEBUG] [FML/]: Instantiating coremod class FMLCorePlugin
[16:47:53] [main/DEBUG] [FML/]: Added access transformer class cpw.mods.fml.common.asm.transformers.AccessTransformer to enqueued access transformers
[16:47:53] [main/DEBUG] [FML/]: Enqueued coremod FMLCorePlugin
[16:47:53] [main/DEBUG] [FML/]: Instantiating coremod class FMLForgePlugin
[16:47:53] [main/DEBUG] [FML/]: Added access transformer class net.minecraftforge.transformers.ForgeAccessTransformer to enqueued access transformers
[16:47:53] [main/DEBUG] [FML/]: Enqueued coremod FMLForgePlugin
[16:47:53] [main/DEBUG] [FML/]: All fundamental core mods are successfully located
[16:47:53] [main/DEBUG] [FML/]: Discovering coremods
[16:47:53] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:47:53] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:47:53] [main/INFO] [LaunchWrapper/]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:47:53] [main/ERROR] [LaunchWrapper/]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_20]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_20]
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:?]

 

latest.txt in the technic modpacks logs

[16:54:23] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[16:54:23] [main/INFO]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[16:54:23] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[16:54:23] [main/INFO]: Forge Mod Loader version 7.2.217.1147 for Minecraft 1.7.2 loading
[16:54:23] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_20, running on Windows 8.1:amd64:6.3, installed at C:\Program Files\Java\jre1.8.0_20
[16:54:23] [main/WARN]: The coremod com.spacechase0.minecraft.spacecore.asm.SpaceCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:23] [main/WARN]: The coremod deconstruction.asm.deconstructionLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:23] [main/WARN]: The coremod appeng.transformer.AppEngCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:23] [main/INFO]: [AppEng] Core Init
[16:54:24] [main/WARN]: The coremod codechicken.core.launch.CodeChickenCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod codechicken.core.launch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod ic2.core.coremod.IC2core does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod invtweaks.forge.asm.FMLPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod codechicken.nei.asm.NEICorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod openeye.CorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod codechicken.core.launch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod codechicken.core.launch.DepLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod lumien.randomthings.Transformer.RTLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/WARN]: The coremod portablejim.veinminer.asm.VeinMinerCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[16:54:25] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:54:25] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:54:25] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:54:25] [main/ERROR]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_20]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_20]
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:?]