{Solved}Forge 1.12.2 crashing before the window pops up

If I remove mods, it loads fine. Here are the logs;[03:23:04] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[03:23:04] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[03:23:04] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[03:23:04] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2854 for Minecraft 1.12.2 loading
[03:23:04] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft Launcher\runtime\jre-x64
[03:23:05] [main/INFO] [FML]: Searching C:\Users\AppData\Roaming\.minecraft\mods for mods
[03:23:05] [main/INFO] [FML]: Searching C:\Users\AppData\Roaming\.minecraft\mods\1.12.2 for mods
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in BetterFoliage-MC1.12-2.3.1.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod BetterFoliageLoader (mods.betterfoliage.loader.BetterFoliageLoader) is not signed!
[03:23:05] [main/INFO] [FML]: Loading tweaker guichaguri.betterfps.tweaker.BetterFpsTweaker from BetterFps-1.4.8.jar
[03:23:05] [main/INFO] [FML]: Loading tweaker codechicken.asm.internal.Tweaker from ChickenASM-1.12-1.0.2.7.jar
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in CreativeCore_v1.10.20_mc1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod com.creativemd.creativecore.core.CreativePatchingLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[03:23:05] [main/WARN] [FML]: The coremod CreativePatchingLoader (com.creativemd.creativecore.core.CreativePatchingLoader) is not signed!
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in DynamicLights-1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod atomicstryker.dynamiclights.common.DLFMLCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[03:23:05] [main/WARN] [FML]: The coremod DLFMLCorePlugin (atomicstryker.dynamiclights.common.DLFMLCorePlugin) is not signed!
[03:23:05] [main/INFO] [FML]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from DynamicSurroundings-1.12.2-3.6.1.0.jar
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in HardcoreDarkness-MC1.12.2-2.0.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod lumien.hardcoredarkness.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in iceandfire-1.9.1-1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod iceandfire (com.github.alexthe666.iceandfire.asm.IceAndFirePlugin) is not signed!
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in InventoryTweaks-1.63.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod invtweaks.forge.asm.FMLPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in ISeeDragons-0.12.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod FMLCorePlugin (io.github.xcube16.iseedragons.FMLCorePlugin) is not signed!
[03:23:05] [main/WARN] [FML]: The coremod ivorius.ivtoolkit.IvToolkitLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[03:23:05] [main/WARN] [FML]: The coremod IvToolkit (ivorius.ivtoolkit.IvToolkitLoadingPlugin) is not signed!
[03:23:05] [main/INFO] [FML]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from movingworld-1.12-6.353-full.jar
[03:23:05] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.12.2_HD_U_F5_MOD.jar
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in Quark-r1.6-179.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod Quark Plugin (vazkii.quark.base.asm.LoadingPlugin) is not signed!
[03:23:05] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in StalkerCreepers-1.12.1.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[03:23:05] [main/WARN] [FML]: The coremod atomicstryker.stalkercreepers.common.SCFMLCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[03:23:05] [main/WARN] [FML]: The coremod SCFMLCorePlugin (atomicstryker.stalkercreepers.common.SCFMLCorePlugin) is not signed!
[03:23:05] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[03:23:05] [main/INFO] [LaunchWrapper]: Loading tweak class name guichaguri.betterfps.tweaker.BetterFpsTweaker
[03:23:05] [main/INFO] [LaunchWrapper]: Loading tweak class name codechicken.asm.internal.Tweaker
[03:23:05] [main/INFO] [LaunchWrapper]: Loading tweak class name org.spongepowered.asm.launch.MixinTweaker
[03:23:05] [main/INFO] [mixin]: SpongePowered MIXIN Subsystem Version=0.8 Source=file:/C:/Users/AppData/Roaming/.minecraft/mods/1.12.2/DynamicSurroundings-1.12.2-3.6.1.0.jar Service=LaunchWrapper Env=CLIENT
[03:23:05] [main/INFO] [mixin]: Compatibility level set to JAVA_8
[03:23:05] [main/WARN] [FML]: The coremod com.elytradev.movingworld.common.asm.coremod.MovingWorldCoreMod does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[03:23:05] [main/WARN] [FML]: The coremod MovingWorldCore (com.elytradev.movingworld.common.asm.coremod.MovingWorldCoreMod) is not signed!
[03:23:05] [main/ERROR] [mixin]: Mixin config mixins.movingworld.json does not specify "minVersion" property
[03:23:05] [main/WARN] [LaunchWrapper]: Tweak class name org.spongepowered.asm.launch.MixinTweaker has already been visited -- skipping
[03:23:05] [main/INFO] [LaunchWrapper]: Loading tweak class name optifine.OptiFineForgeTweaker
[03:23:05] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[03:23:05] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[03:23:05] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[03:23:05] [main/INFO] [LaunchWrapper]: Calling tweak class optifine.OptiFineForgeTweaker
[03:23:05] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: acceptOptions
[03:23:05] [main/INFO] [STDOUT]: [optifine.OptiFineForgeTweaker:dbg:56]: OptiFineForgeTweaker: injectIntoClassLoader
[03:23:05] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:242]: OptiFine ClassTransformer
[03:23:05] [main/INFO] [STDOUT]: [optifine.OptiFineClassTransformer:dbg:242]: OptiFine ZIP file: C:\Users\AppData\Roaming\.minecraft\mods\1.12.2\OptiFine_1.12.2_HD_U_F5_MOD.jar
[03:23:05] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[03:23:07] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class codechicken.asm.internal.Tweaker
[03:23:07] [main/INFO] [STDOUT]: [codechicken.asm.internal.Tweaker:injectIntoClassLoader:30]: false
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class org.spongepowered.asm.launch.MixinTweaker
[03:23:07] [main/INFO] [mixin]: Initialised Mixin FML Remapper Adapter with net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper@3c4262d1
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class guichaguri.betterfps.tweaker.BetterFpsTweaker
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.NoClassDefFoundError: kotlin/reflect/KDeclarationContainer
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at mods.betterfoliage.loader.Refs.<clinit>(Refs.kt:13)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at mods.betterfoliage.loader.BetterFoliageTransformer.<init>(BetterFoliageCore.kt:13)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.Class.newInstance(Class.java:442)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.<init>(ASMTransformerWrapper.java:243)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at $wrapper.mods.betterfoliage.loader.BetterFoliageTransformer.<init>(Unknown Source)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.Class.newInstance(Class.java:442)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:88)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:132)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: Caused by: java.lang.ClassNotFoundException: kotlin.reflect.KDeclarationContainer
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]:     at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[03:23:07] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]:     ... 18 more

I have 63 mods, and I had 80+, but wanted to switch some mods for others. I tried, but now it crashes. Any help?

Edited January 22, 20214 yr by Guy:)
I fixed the issue