Minecraft Forums

Hi! Can anyone provide their input on this? I researched, and usually I'm pretty good at this, but when I click play, it says "Unexpected issue occurred and the game crashed". How do I fix this?

/My cRash rePorT

[20:48:32] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[20:48:32] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[20:48:32] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[20:48:33] [main/INFO] [FML]: Forge Mod Loader version 14.23.4.2705 for Minecraft 1.12.2 loading
[20:48:33] [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\runtime\jre-x64\1.8.0_51
[20:48:33] [main/INFO] [FML]: Searching C:\Users\Owner\AppData\Roaming\.minecraft\mods for mods
[20:48:33] [main/INFO] [FML]: Searching C:\Users\Owner\AppData\Roaming\.minecraft\mods\1.12.2 for mods
[20:48:33] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in AppleCore-mc1.12.2-3.1.4.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[20:48:33] [main/WARN] [FML]: The coremod AppleCore (squeek.applecore.AppleCore) is not signed!
[20:48:33] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in backpacks+1.12.2+-+3.5.4.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[20:48:33] [main/WARN] [FML]: The coremod BCModPlugin (brad16840.core.BCModPlugin) is not signed!
[20:48:33] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in BetterFoliage-MC1.12-2.2.0.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[20:48:33] [main/WARN] [FML]: The coremod BetterFoliageLoader (mods.betterfoliage.loader.BetterFoliageLoader) is not signed!
[20:48:33] [main/INFO] [FML]: Loading tweaker guichaguri.betterfps.tweaker.BetterFpsTweaker from BetterFps-1.4.8.jar
[20:48:33] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in InventoryTweaks-1.64+dev.145.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[20:48:33] [main/WARN] [FML]: The coremod invtweaks.forge.asm.FMLPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[20:48:33] [main/WARN] [FML]: The coremod ObfuscatePlugin (com.mrcrayfish.obfuscate.asm.ObfuscatePlugin) is not signed!
[20:48:33] [main/WARN] [FML]: The coremod OTGCorePlugin (com.pg85.otg.forge.asm.launch.OTGCorePlugin) is not signed!
[20:48:33] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in RandomThings-MC1.12.2-4.2.5.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[20:48:33] [main/WARN] [FML]: The coremod lumien.randomthings.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[20:48:33] [main/WARN] [FML]: The coremod blusunrize.immersiveengineering.common.asm.IELoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[20:48:33] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:48:33] [main/INFO] [LaunchWrapper]: Loading tweak class name guichaguri.betterfps.tweaker.BetterFpsTweaker
[20:48:33] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[20:48:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:48:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[20:48:33] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [FML]: Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557
[20:48:35] [main/INFO] [FML]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class guichaguri.betterfps.tweaker.BetterFpsTweaker
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:35] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:36] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:36] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.NoClassDefFoundError: kotlin/reflect/KDeclarationContainer
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at mods.betterfoliage.loader.Refs.<clinit>(Refs.kt:13)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at mods.betterfoliage.loader.BetterFoliageTransformer.<init>(BetterFoliageCore.kt:13)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Class.newInstance(Class.java:442)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.<init>(ASMTransformerWrapper.java:245)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at $wrapper.mods.betterfoliage.loader.BetterFoliageTransformer.<init>(Unknown Source)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Class.newInstance(Class.java:442)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:88)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:129)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: Caused by: java.lang.ClassNotFoundException: kotlin.reflect.KDeclarationContainer
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[20:48:36] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: ... 18 more

Remove mods one by one till you find the culprit.