Forge launcher dissapears.

[xSpeedpot]

Hello, I've done some research on the forums, yt ect. but i could'nt find a solution for my problem.

 

Well this is basicly what happens:

1:im opening my minecraft

2:selecting the latest recommended forge client.

3: i press play

4: and then the launcher dissapears so im waiting for the launcher to appear again but its not appearing.

 

I deleted my 1.7.2 vanilla/optifine client but it doesnt work.

here are some logs(from fml client latest)

 

[18:20:42] [main/INFO] [FML/]: Forge Mod Loader version 7.2.211.1121 for Minecraft 1.7.2 loading

[18:20:42] [main/INFO] [FML/]: Java is Java HotSpot 64-Bit Server VM, version 1.8.0_25, running on Windows 10:amd64:10.0, installed at C:\Users\Ismail\Desktop\runtime\jre-x64\1.8.0_25

[18:20:42] [main/DEBUG] [FML/]: Java classpath at launch is C:\Users\Ismail\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\Ismail\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\Ismail\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121.jar

[18:20:42] [main/DEBUG] [FML/]: Java library path at launch is C:\Users\Ismail\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121-natives-613189298376679

[18:20:42] [main/DEBUG] [FML/]: Enabling runtime deobfuscation

[18:20:42] [main/DEBUG] [FML/]: Instantiating coremod class FMLCorePlugin

[18:20:42] [main/DEBUG] [FML/]: Added access transformer class cpw.mods.fml.common.asm.transformers.AccessTransformer to enqueued access transformers

[18:20:42] [main/DEBUG] [FML/]: Enqueued coremod FMLCorePlugin

[18:20:42] [main/DEBUG] [FML/]: Instantiating coremod class FMLForgePlugin

[18:20:42] [main/DEBUG] [FML/]: Added access transformer class net.minecraftforge.transformers.ForgeAccessTransformer to enqueued access transformers

[18:20:42] [main/DEBUG] [FML/]: Enqueued coremod FMLForgePlugin

[18:20:42] [main/DEBUG] [FML/]: All fundamental core mods are successfully located

[18:20:42] [main/DEBUG] [FML/]: Discovering coremods

[18:20:42] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[18:20:42] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker

[18:20:42] [main/INFO] [LaunchWrapper/]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

[18:20:42] [main/ERROR] [LaunchWrapper/]: Unable to launch

java.util.ConcurrentModificationException

at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901) ~[?:1.8.0_25]

at java.util.ArrayList$Itr.remove(ArrayList.java:865) ~[?: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:?]

 

 

And the logs ofc:

[18:11:05] [main/INFO]: Setting user: xSpeedpot

[18:11:05] [main/INFO]: (Session ID is token:fb12877850754b748deacc243a76c729:16b0ada068ea49eb92d800dc3bd2baa3)

[18:11:06] [Client thread/INFO]: LWJGL Version: 2.9.0

[18:11:11] [Client thread/INFO]: Reloading ResourceManager: Default, ! # §6§lxSpeedpots TexturePack.zip, Map Overlay.zip, §4§lClear Glass with Nice Sky and String.zip

[18:11:12] [sound Library Loader/INFO]: Sound engine started

[18:11:15] [Client thread/INFO]: Created: 2048x1024 textures/blocks-atlas

[18:11:16] [Client thread/INFO]: Created: 2048x2048 textures/items-atlas

[18:11:33] [Client thread/INFO]: Stopping!

 

 

 

 

I have no mods in my mod folder.

 

Could you guys please help me out with this idk what to do

[xSpeedpot]

Why not? It always worked for me fine on my old hdd.

And it is better for pvp so thats why i use it.