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

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

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