Earendil

I updated my Forge and it worked . Thanks for the help and sorry for posting such an obvious problem haha

Hey, so when I try to run my Forge 1.7.10 I get this message: [12:57:58] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker [12:57:58] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker [12:57:58] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker [12:57:58] [main/INFO] [FML]: Forge Mod Loader version 7.10.85.1230 for Minecraft 1.7.10 loading [12:57:58] [main/INFO] [FML]: Java is Java HotSpot 64-Bit Server VM, version 1.8.0_25, running on Windows 7:amd64:6.1, installed at C:\Users\User\Documents\Curse\Minecraft\Install\runtime\jre-x64\1.8.0_25 [12:57:58] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker [12:57:58] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker [12:57:58] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker Exception in thread "main" [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.IncompatibleClassChangeError [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.util.TimSort.countRunAndMakeAscending(TimSort.java:351) [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.util.TimSort.sort(TimSort.java:216) [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.util.Arrays.sort(Arrays.java:1438) [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.CoreModManager.sort(CoreModManager.java) [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.relauncher.CoreModManager.sortTweakList(CoreModManager.java) [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker.acceptOptions(FMLInjectionAndSortingTweaker.java:33) [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:114) [12:57:58] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) Anyone know how to fix this?