1.10.2 Forge keeps crashing

[quad1801]

2016-08-28 17:41:04,809 WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream

2016-08-28 17:41:04,812 WARN Unable to instantiate org.fusesource.jansi.WindowsAnsiOutputStream

[17:41:04] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker

[17:41:04] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker

[17:41:04] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker

[17:41:04] [main/INFO] [FML]: Forge Mod Loader version 12.18.1.2013 for Minecraft 1.10.2 loading

[17:41:04] [main/INFO] [FML]: Java is Java HotSpot 64-Bit Server VM, version 1.8.0_60, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_60

[17:41:04] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.8.0_HD_U_D5.jar

[17:41:05] [main/WARN] [FML]: The coremod chylex.javacheck.Java8CheckerCoremod does not have a MCVersion annotation, it may cause issues with this version of Minecraft

[17:41:05] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker

[17:41:05] [main/INFO] [LaunchWrapper]: Loading tweak class name optifine.OptiFineForgeTweaker

[17:41:05] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker

[17:41:05] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker

[17:41:05] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker

[17:41:05] [main/INFO] [LaunchWrapper]: Calling tweak class optifine.OptiFineForgeTweaker

[17:41:05] [main/INFO] [sTDOUT]: [optifine.OptiFineForgeTweaker:dbg:49]: OptiFineForgeTweaker: acceptOptions

[17:41:05] [main/INFO] [sTDOUT]: [optifine.OptiFineForgeTweaker:dbg:49]: OptiFineForgeTweaker: injectIntoClassLoader

[17:41:05] [main/INFO] [sTDOUT]: [optifine.OptiFineClassTransformer:dbg:179]: OptiFine ClassTransformer

[17:41:05] [main/INFO] [sTDOUT]: [optifine.OptiFineClassTransformer:dbg:179]: OptiFine URL: file:/C:/Users/user/AppData/Roaming/.minecraft/mods/OptiFine_1.8.0_HD_U_D5.jar

[17:41:05] [main/INFO] [sTDOUT]: [optifine.OptiFineClassTransformer:dbg:179]: OptiFine ZIP file: java.util.zip.ZipFile@481a15ff

[17:41:05] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper

[17:41:07] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557

[17:41:08] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc

[17:41:08] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper

[17:41:08] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper

[17:41:08] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker

Exception in thread "main" [17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: java.lang.NoClassDefFoundError: net/minecraftforge/fml/common/ICrashCallable

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.Class.forName0(Native Method)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.Class.forName(Unknown Source)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraftforge.fml.common.launcher.FMLDeobfTweaker.injectIntoClassLoader(FMLDeobfTweaker.java:53)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.common.ICrashCallable

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:-1]: ... 5 more

[17:41:08] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.IncompatibleClassChangeError: Implementing class

[17:41:08] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.defineClass1(Native Method)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.defineClass(Unknown Source)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.security.SecureClassLoader.defineClass(Unknown Source)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)

[17:41:08] [main/INFO] [sTDERR]: [java.lang.Throwable:printStackTrace:-1]: ... 7 more

 

 

Whenever I try to launch Minecraft, this error keeps showing up, and the client doesn't show up. Vanilla works, and modded older versions work.

 

 

Sorry for the messiness, and thanks a lot in advance.

[WitherDoggie]

You have 1.8 optifine in a 1.10.2 forge client. This won't work. Remove optifine.