hi, when i lunch to client, client wasnt open my log:
[15:59:46] [main/DEBUG] [FML/]: Enabling runtime deobfuscation
[15:59:46] [main/DEBUG] [FML/]: Instantiating coremod class FMLCorePlugin
[15:59:46] [main/DEBUG] [FML/]: Added access transformer class cpw.mods.fml.common.asm.transformers.AccessTransformer to enqueued access transformers
[15:59:46] [main/DEBUG] [FML/]: Enqueued coremod FMLCorePlugin
[15:59:46] [main/DEBUG] [FML/]: Instantiating coremod class FMLForgePlugin
[15:59:46] [main/DEBUG] [FML/]: Added access transformer class net.minecraftforge.transformers.ForgeAccessTransformer to enqueued access transformers
[15:59:46] [main/DEBUG] [FML/]: Enqueued coremod FMLForgePlugin
[15:59:46] [main/DEBUG] [FML/]: All fundamental core mods are successfully located
[15:59:46] [main/DEBUG] [FML/]: Discovering coremods
[15:59:46] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[15:59:46] [main/INFO] [LaunchWrapper/]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[15:59:46] [main/INFO] [LaunchWrapper/]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[15:59:46] [main/ERROR] [LaunchWrapper/]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_141]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_141]
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:?]
my forge version is: 1.7.2 - 10.12.2.1121 (mc 1.7.2)
thaks for help already
