我打开了普通的1.7.2版本的的Minecraft，没有问题。然后加入了mod和forge，再次用旋律的5.31版本的启动器打开，结果启动器消失了，游戏也没打开。再然后我用调试模式开了一次试试，出现了以下提示。。。
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[20:18:10] [main/INFO] [FML]: Forge Mod Loader version 7.2.116.1024 for Minecraft 1.7.2 loading
[20:18:10] [main/INFO] [FML]: Java is Java HotSpot(TM) Client VM, version 1.8.0_31, running on Windows 8.1:x86:6.3, installed at C:\Program Files (x86)\Java\jre1.8.0_31
[20:18:10] [main/WARN] [FML]: The coremod lain.mods.inputfix.InputFix does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[20:18:10] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.7.2_HD_U_C2.jar
[20:18:10] [main/INFO] [FML]: Loading tweaker shadersmodcore.loading.SMCTweaker from ShadersModCore-v2.3.7-mc1.7.2-f1024.jar
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name optifine.OptiFineForgeTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name shadersmodcore.loading.SMCTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:18:10] [main/ERROR] [LaunchWrapper]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_31]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_31]
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:?]
请各位大神帮忙看看是怎么回事？
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[20:18:10] [main/INFO] [FML]: Forge Mod Loader version 7.2.116.1024 for Minecraft 1.7.2 loading
[20:18:10] [main/INFO] [FML]: Java is Java HotSpot(TM) Client VM, version 1.8.0_31, running on Windows 8.1:x86:6.3, installed at C:\Program Files (x86)\Java\jre1.8.0_31
[20:18:10] [main/WARN] [FML]: The coremod lain.mods.inputfix.InputFix does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[20:18:10] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.7.2_HD_U_C2.jar
[20:18:10] [main/INFO] [FML]: Loading tweaker shadersmodcore.loading.SMCTweaker from ShadersModCore-v2.3.7-mc1.7.2-f1024.jar
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name optifine.OptiFineForgeTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name shadersmodcore.loading.SMCTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[20:18:10] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:18:10] [main/ERROR] [LaunchWrapper]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_31]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_31]
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:?]
请各位大神帮忙看看是怎么回事？
