MC Forge Client Crashes Whilst Initializing Game

Methrine · March 24, 2020

Hey team,

Just made the swap to Linux running PopOS 19.10 and am trying to get my Minecraft Forge client up and running. I've got JDK/JRE 8 set up and the vanilla game runs fine. I've also got a local Forge server running that friends are able to join, but my client still crashes and gives the following error report:

Reveal hidden contents

---- Minecraft Crash Report ----
// Oops.

Time: 3/24/20 5:25 PM
Description: Initializing game

java.lang.NullPointerException: Initializing game
   at net.minecraft.client.Minecraft.func_213226_a(Minecraft.java:996) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.MainWindow.func_198102_b(SourceFile:267) ~[?:?] {re:classloading}
   at org.lwjgl.glfw.GLFWFramebufferSizeCallbackI.callback(GLFWFramebufferSizeCallbackI.java:37) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
   at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
   at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
   at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:98) ~[?:?] {re:classloading}
   at net.minecraft.client.MainWindow.func_227802_e_(SourceFile:301) ~[?:?] {re:classloading}
   at net.minecraftforge.fml.client.EarlyLoaderGUI.<init>(EarlyLoaderGUI.java:49) ~[?:?] {re:classloading}
   at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:96) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.Minecraft.<init>(Minecraft.java:393) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.main.Main.main(SourceFile:166) ~[1.15.2-forge-31.1.27.jar:?] {re:classloading}
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_242] {}
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_242] {}
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_242] {}
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_242] {}
   at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:56) ~[forge-1.15.2-31.1.27.jar:31.1] {}
   at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.0.0-milestone.4.jar:?] {}

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
   at net.minecraft.client.Minecraft.func_213226_a(Minecraft.java:996)
   at net.minecraft.client.MainWindow.func_198102_b(SourceFile:267)
   at org.lwjgl.glfw.GLFWFramebufferSizeCallbackI.callback(GLFWFramebufferSizeCallbackI.java:37)
   at org.lwjgl.system.JNI.invokeV(Native Method)
   at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
   at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:98)
   at net.minecraft.client.MainWindow.func_227802_e_(SourceFile:301)
   at net.minecraftforge.fml.client.EarlyLoaderGUI.<init>(EarlyLoaderGUI.java:49)
   at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:96)
   at net.minecraft.client.Minecraft.<init>(Minecraft.java:393)

-- Initialization --
Details:
Stacktrace:
   at net.minecraft.client.main.Main.main(SourceFile:166)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:56)
   at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
   at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
   at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)

-- System Details --
Details:
   Minecraft Version: 1.15.2
   Minecraft Version ID: 1.15.2
   Operating System: Linux (amd64) version 5.3.0-7642-generic
   Java Version: 1.8.0_242, Private Build
   Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Private Build
   Memory: 907620368 bytes (865 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
   CPUs: 12
   JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
   Launched Version: 1.15.2-forge-31.1.27
   Backend library: LWJGL version 3.2.2 build 10
   Backend API: GeForce RTX 2080 with Max-Q Design/PCIe/SSE2 GL version 4.6.0 NVIDIA 440.44, NVIDIA Corporation
   GL Caps: Using framebuffer using OpenGL 3.0
   Using VBOs: Yes
   Is Modded: Definitely; Client brand changed to 'forge'
   Type: Client (map_client.txt)
   CPU: 12x Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz

Note that I currently have no mods installed. I've also performed a reinstall of base Minecraft as well as Forge with no change in symptoms.

Let me know what your thoughts are or if there's any additional information I can provide. Your help is greatly appreciated.

Methrine · March 25, 2020

Hey team, minor update.

I've still not found a solution to this one, and wanted to provide the full debug log from an attempt this morning. Note that I've tried playing with a few different Java executable paths with no change in symptoms.

Reveal hidden contents

[25Mar2020 07:21:59.054] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--username, Methrine, --version, 1.15.2-forge-31.1.27, --gameDir, /home/compy/.minecraft, --assetsDir, /home/compy/.minecraft/assets, --assetIndex, 1.15, --uuid, 2911202fff024476aa1fc702c029b898, --accessToken, ❄❄❄❄❄❄❄❄, --userType, mojang, --versionType, release, --launchTarget, fmlclient, --fml.forgeVersion, 31.1.27, --fml.mcVersion, 1.15.2, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20200307.202953]
[25Mar2020 07:21:59.057] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 5.0.0-milestone.4+67+b1a340b starting: java version 1.8.0_77 by Oracle Corporation
[25Mar2020 07:21:59.067] [main/DEBUG] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Found launch services [minecraft,testharness,fmlclient,fmlserver]
[25Mar2020 07:21:59.073] [main/DEBUG] [cpw.mods.modlauncher.NameMappingServiceHandler/MODLAUNCHER]: Found naming services : []
[25Mar2020 07:21:59.081] [main/DEBUG] [cpw.mods.modlauncher.LaunchPluginHandler/MODLAUNCHER]: Found launch plugins: [eventbus,object_holder_definalize,runtime_enum_extender,accesstransformer,capability_inject_definalize,runtimedistcleaner]
[25Mar2020 07:21:59.088] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Discovering transformation services
[25Mar2020 07:21:59.092] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Found additional transformation services from discovery services: []
[25Mar2020 07:21:59.109] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Found transformer services : [fml]
[25Mar2020 07:21:59.109] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Transformation services loading
[25Mar2020 07:21:59.110] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Loading service fml
[25Mar2020 07:21:59.110] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/]: Injecting tracing printstreams for STDOUT/STDERR.
[25Mar2020 07:21:59.112] [main/DEBUG] [net.minecraftforge.fml.loading.LauncherVersion/CORE]: Found FMLLauncher version 31.1
[25Mar2020 07:21:59.112] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML 31.1 loading
[25Mar2020 07:21:59.112] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found ModLauncher version : 5.0.0-milestone.4+67+b1a340b
[25Mar2020 07:21:59.112] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Initializing modjar URL handler
[25Mar2020 07:21:59.115] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found AccessTransformer version : 2.0.4+53+c61c33c
[25Mar2020 07:21:59.115] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found EventBus version : 2.0.0-milestone.1+57+de55078
[25Mar2020 07:21:59.115] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Found Runtime Dist Cleaner
[25Mar2020 07:21:59.117] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: FML found CoreMod version : 2.0.0-milestone.1+5+5b32e68
[25Mar2020 07:21:59.117] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Found ForgeSPI package implementation version 2.0.0-milestone.1+7+a2eaa64
[25Mar2020 07:21:59.117] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Found ForgeSPI package specification 3
[25Mar2020 07:21:59.162] [main/INFO] [net.minecraftforge.fml.loading.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[25Mar2020 07:21:59.163] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Loaded service fml
[25Mar2020 07:21:59.164] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Configuring option handling for services
[25Mar2020 07:21:59.171] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Transformation services initializing
[25Mar2020 07:21:59.171] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformation service fml
[25Mar2020 07:21:59.171] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Setting up basic FML game directories
[25Mar2020 07:21:59.172] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing GAMEDIR directory : /home/compy/.minecraft
[25Mar2020 07:21:59.172] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path GAMEDIR is /home/compy/.minecraft
[25Mar2020 07:21:59.172] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing MODSDIR directory : /home/compy/.minecraft/mods
[25Mar2020 07:21:59.172] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path MODSDIR is /home/compy/.minecraft/mods
[25Mar2020 07:21:59.172] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing CONFIGDIR directory : /home/compy/.minecraft/config
[25Mar2020 07:21:59.172] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path CONFIGDIR is /home/compy/.minecraft/config
[25Mar2020 07:21:59.173] [main/DEBUG] [net.minecraftforge.fml.loading.FMLPaths/CORE]: Path FMLCONFIG is /home/compy/.minecraft/config/fml.toml
[25Mar2020 07:21:59.173] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Loading configuration
[25Mar2020 07:21:59.228] [main/DEBUG] [net.minecraftforge.fml.loading.FileUtils/CORE]: Found existing default config directory directory : /home/compy/.minecraft/defaultconfigs
[25Mar2020 07:21:59.229] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Preparing launch handler
[25Mar2020 07:21:59.229] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Using fmlclient as launch service
[25Mar2020 07:21:59.234] [main/DEBUG] [net.minecraftforge.fml.loading.FMLLoader/CORE]: Received command line version data : MC Version: '1.15.2' MCP Version: '20200307.202953' Forge Version: '31.1.27' Forge group: 'net.minecraftforge'
[25Mar2020 07:21:59.235] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Found JAR asm at path /home/compy/.minecraft/libraries/org/ow2/asm/asm/7.2/asm-7.2.jar
[25Mar2020 07:21:59.235] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Found probable library path /home/compy/.minecraft/libraries
[25Mar2020 07:21:59.235] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Found forge path /home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-universal.jar is present
[25Mar2020 07:21:59.236] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: SRG MC at /home/compy/.minecraft/libraries/net/minecraft/client/1.15.2-20200307.202953/client-1.15.2-20200307.202953-srg.jar is present
[25Mar2020 07:21:59.236] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: MC Extras at /home/compy/.minecraft/libraries/net/minecraft/client/1.15.2/client-1.15.2-extra.jar is present
[25Mar2020 07:21:59.236] [main/DEBUG] [net.minecraftforge.fml.loading.LibraryFinder/CORE]: Forge patches at /home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-client.jar is present
[25Mar2020 07:21:59.238] [main/DEBUG] [net.minecraftforge.fml.loading.LanguageLoadingProvider/CORE]: Found 0 language providers
[25Mar2020 07:21:59.238] [main/DEBUG] [net.minecraftforge.fml.loading.LanguageLoadingProvider/CORE]: Adding forge as a language from /home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-universal.jar
[25Mar2020 07:21:59.239] [main/DEBUG] [net.minecraftforge.fml.loading.LanguageLoadingProvider/CORE]: Adding file:/home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-universal.jar to languageloader classloader
[25Mar2020 07:21:59.268] [main/DEBUG] [net.minecraftforge.fml.loading.LanguageLoadingProvider/CORE]: Found 2 language providers
[25Mar2020 07:21:59.268] [main/DEBUG] [net.minecraftforge.fml.loading.LanguageLoadingProvider/CORE]: Found language provider javafml, version 31.1
[25Mar2020 07:21:59.270] [main/DEBUG] [net.minecraftforge.fml.loading.LanguageLoadingProvider/CORE]: Found language provider minecraft, version 1
[25Mar2020 07:21:59.272] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Initialized transformation service fml
[25Mar2020 07:21:59.272] [main/DEBUG] [cpw.mods.modlauncher.NameMappingServiceHandler/MODLAUNCHER]: Current naming domain is 'srg'
[25Mar2020 07:21:59.273] [main/DEBUG] [cpw.mods.modlauncher.NameMappingServiceHandler/MODLAUNCHER]: Identified name mapping providers {}
[25Mar2020 07:21:59.273] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Transformation services begin scanning
[25Mar2020 07:21:59.273] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Beginning scan trigger - transformation service fml
[25Mar2020 07:21:59.273] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Initiating mod scan
[25Mar2020 07:21:59.292] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModListHandler/CORE]: Found mod coordinates from lists: []
[25Mar2020 07:21:59.304] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer/CORE]: Found Mod Locators : (mods folder:null),(maven libs:null),(exploded directory:null),(minecraft:null)
[25Mar2020 07:21:59.317] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Considering mod file candidate /home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-universal.jar
[25Mar2020 07:21:59.339] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFileInfo/LOADING]: Found valid mod file forge-1.15.2-31.1.27-universal.jar with {forge} mods - versions {31.1.27}
[25Mar2020 07:21:59.339] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFile/LOADING]: Loading mod file /home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-universal.jar with language javafml
[25Mar2020 07:21:59.370] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Found coremod fieldtomethodtransformers with Javascript path META-INF/fieldtomethodtransformers.js
[25Mar2020 07:21:59.370] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFile/LOADING]: Found coremod META-INF/fieldtomethodtransformers.js
[25Mar2020 07:21:59.370] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Considering mod file candidate /home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-client.jar
[25Mar2020 07:21:59.372] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFileInfo/LOADING]: Found valid mod file forge-1.15.2-31.1.27-client.jar with {minecraft} mods - versions {1.15.2}
[25Mar2020 07:21:59.372] [main/DEBUG] [net.minecraftforge.fml.loading.moddiscovery.ModFile/LOADING]: Loading mod file /home/compy/.minecraft/libraries/net/minecraftforge/forge/1.15.2-31.1.27/forge-1.15.2-31.1.27-client.jar with language minecraft
[25Mar2020 07:21:59.379] [main/DEBUG] [net.minecraftforge.fml.loading.ModSorter/LOADING]: Found 0 mandatory requirements
[25Mar2020 07:21:59.380] [main/DEBUG] [net.minecraftforge.fml.loading.ModSorter/LOADING]: Found 0 mandatory mod requirements missing
[25Mar2020 07:21:59.661] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: End scan trigger - transformation service fml
[25Mar2020 07:21:59.661] [main/DEBUG] [cpw.mods.modlauncher.TransformationServicesHandler/MODLAUNCHER]: Transformation services loading transformers
[25Mar2020 07:21:59.662] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Initializing transformers for transformation service fml
[25Mar2020 07:21:59.662] [main/DEBUG] [net.minecraftforge.fml.loading.FMLServiceProvider/CORE]: Loading coremod transformers
[25Mar2020 07:21:59.662] [main/DEBUG] [net.minecraftforge.coremod.CoreModEngine/COREMOD]: Loading CoreMod from META-INF/fieldtomethodtransformers.js
[25Mar2020 07:21:59.755] [main/DEBUG] [net.minecraftforge.coremod.CoreModEngine/COREMOD]: CoreMod loaded successfully
[25Mar2020 07:21:59.760] [main/DEBUG] [cpw.mods.modlauncher.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@6256ac4f to Target : CLASS {Lnet/minecraft/potion/EffectInstance;} {} {V}
[25Mar2020 07:21:59.761] [main/DEBUG] [cpw.mods.modlauncher.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@2c1b9e4b to Target : CLASS {Lnet/minecraft/block/FlowingFluidBlock;} {} {V}
[25Mar2020 07:21:59.762] [main/DEBUG] [cpw.mods.modlauncher.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@757d6814 to Target : CLASS {Lnet/minecraft/item/BucketItem;} {} {V}
[25Mar2020 07:21:59.762] [main/DEBUG] [cpw.mods.modlauncher.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@649725e3 to Target : CLASS {Lnet/minecraft/block/StairsBlock;} {} {V}
[25Mar2020 07:21:59.762] [main/DEBUG] [cpw.mods.modlauncher.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@3c0fae6c to Target : CLASS {Lnet/minecraft/block/FlowerPotBlock;} {} {V}
[25Mar2020 07:21:59.762] [main/DEBUG] [cpw.mods.modlauncher.TransformStore/MODLAUNCHER]: Adding transformer net.minecraftforge.coremod.transformer.CoreModClassTransformer@4c168660 to Target : CLASS {Lnet/minecraft/item/FishBucketItem;} {} {V}
[25Mar2020 07:21:59.762] [main/DEBUG] [cpw.mods.modlauncher.TransformationServiceDecorator/MODLAUNCHER]: Initialized transformers for transformation service fml
[25Mar2020 07:21:59.785] [main/INFO] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlclient' with arguments [--version, 1.15.2-forge-31.1.27, --gameDir, /home/compy/.minecraft, --assetsDir, /home/compy/.minecraft/assets, --uuid, 2911202fff024476aa1fc702c029b898, --username, Methrine, --assetIndex, 1.15, --accessToken, ❄❄❄❄❄❄❄❄, --userType, mojang, --versionType, release]
[25Mar2020 07:22:01.024] [Render thread/INFO] [net.minecraft.client.Minecraft/]: Setting user: Methrine
[25Mar2020 07:22:01.455] [Render thread/DEBUG] [net.minecraftforge.coremod.transformer.CoreModBaseTransformer/COREMOD]: Transforming net/minecraft/block/FlowingFluidBlock
[25Mar2020 07:22:01.506] [Render thread/DEBUG] [net.minecraftforge.coremod.transformer.CoreModBaseTransformer/COREMOD]: Transforming net/minecraft/block/StairsBlock
[25Mar2020 07:22:01.547] [Render thread/DEBUG] [net.minecraftforge.coremod.transformer.CoreModBaseTransformer/COREMOD]: Transforming net/minecraft/block/FlowerPotBlock
[25Mar2020 07:22:03.547] [Render thread/DEBUG] [net.minecraftforge.coremod.transformer.CoreModBaseTransformer/COREMOD]: Transforming net/minecraft/item/BucketItem
[25Mar2020 07:22:03.567] [Render thread/DEBUG] [net.minecraftforge.coremod.transformer.CoreModBaseTransformer/COREMOD]: Transforming net/minecraft/item/FishBucketItem
[25Mar2020 07:22:03.647] [Render thread/DEBUG] [net.minecraftforge.coremod.transformer.CoreModBaseTransformer/COREMOD]: Transforming net/minecraft/potion/EffectInstance
[25Mar2020 07:22:05.680] [Render thread/INFO] [net.minecraft.client.Minecraft/]: Backend library: LWJGL version 3.2.2 build 10
[25Mar2020 07:22:06.136] [Render thread/DEBUG] [net.minecraftforge.fml.ForgeI18n/CORE]: Loading I18N data entries: 4533
[25Mar2020 07:22:06.153] [Render thread/INFO] [STDOUT/]: [net.minecraft.util.registry.Bootstrap:func_179870_a:103]: ---- Minecraft Crash Report ----
// Don't be sad. I'll do better next time, I promise!

Time: 3/25/20 7:22 AM
Description: Initializing game

java.lang.NullPointerException: Initializing game
   at net.minecraft.client.Minecraft.func_213226_a(Minecraft.java:996) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.MainWindow.func_198102_b(SourceFile:267) ~[?:?] {re:classloading}
   at org.lwjgl.glfw.GLFWFramebufferSizeCallbackI.callback(GLFWFramebufferSizeCallbackI.java:37) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
   at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar:build 10] {}
   at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101) ~[lwjgl-glfw-3.2.2.jar:build 10] {}
   at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:98) ~[?:?] {re:classloading}
   at net.minecraft.client.MainWindow.func_227802_e_(SourceFile:301) ~[?:?] {re:classloading}
   at net.minecraftforge.fml.client.EarlyLoaderGUI.<init>(EarlyLoaderGUI.java:49) ~[?:?] {re:classloading}
   at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:96) ~[?:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.Minecraft.<init>(Minecraft.java:393) ~[?:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.main.Main.main(SourceFile:166) ~[1.15.2-forge-31.1.27.jar:?] {re:classloading}
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77] {}
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77] {}
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77] {}
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77] {}
   at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:56) ~[forge-1.15.2-31.1.27.jar:31.1] {}
   at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.0.0-milestone.4.jar:?] {}
   at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.0.0-milestone.4.jar:?] {}

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
   at net.minecraft.client.Minecraft.func_213226_a(Minecraft.java:996)
   at net.minecraft.client.MainWindow.func_198102_b(SourceFile:267)
   at org.lwjgl.glfw.GLFWFramebufferSizeCallbackI.callback(GLFWFramebufferSizeCallbackI.java:37)
   at org.lwjgl.system.JNI.invokeV(Native Method)
   at org.lwjgl.glfw.GLFW.glfwPollEvents(GLFW.java:3101)
   at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:98)
   at net.minecraft.client.MainWindow.func_227802_e_(SourceFile:301)
   at net.minecraftforge.fml.client.EarlyLoaderGUI.<init>(EarlyLoaderGUI.java:49)
   at net.minecraftforge.fml.client.ClientModLoader.begin(ClientModLoader.java:96)
   at net.minecraft.client.Minecraft.<init>(Minecraft.java:393)

-- Initialization --
Details:
Stacktrace:
   at net.minecraft.client.main.Main.main(SourceFile:166)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:56)
   at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
   at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
   at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)

-- System Details --
Details:
   Minecraft Version: 1.15.2
   Minecraft Version ID: 1.15.2
   Operating System: Linux (amd64) version 5.3.0-7642-generic
   Java Version: 1.8.0_77, Oracle Corporation
   Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
   Memory: 2874890280 bytes (2741 MB) / 4160749568 bytes (3968 MB) up to 4294967296 bytes (4096 MB)
   CPUs: 12
   JVM Flags: 8 total; -Xss1M -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
   Launched Version: 1.15.2-forge-31.1.27
   Backend library: LWJGL version 3.2.2 build 10
   Backend API: GeForce RTX 2080 with Max-Q Design/PCIe/SSE2 GL version 4.6.0 NVIDIA 440.44, NVIDIA Corporation
   GL Caps: Using framebuffer using OpenGL 3.0
   Using VBOs: Yes
   Is Modded: Definitely; Client brand changed to 'forge'
   Type: Client (map_client.txt)
   CPU: 12x Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
[25Mar2020 07:22:06.156] [Render thread/INFO] [STDOUT/]: [net.minecraft.util.registry.Bootstrap:func_179870_a:103]: #@!@# Game crashed! Crash report saved to: #@!@# /home/compy/.minecraft/crash-reports/crash-2020-03-25_07.22.06-client.txt

I have a suspicion it may be related to the Display Link driver I'm using with a USB-C docking station, for external monitor, peripherals, ethernet, etc. I'll do some troubleshooting on that end and see if I can find anything.

Methrine · March 25, 2020

Another brief, if somewhat promising, update.

After some troubleshooting and a little more research, it does appear to be related to running multiple monitors with nvidia graphics. I was unable to find a fix.

However, reconnecting my USB-C docking station and doing a brief restart on the box appears to have somewhat alleviated the issue. I'm now able to occasionally launch Forge without crashing. Not an ideal fix, but at least I can play.

For those interested, I'm currently running nvidia driver 440.44. I'm hopeful future updates to this and the Display Link driver I'm using for docking station support will fix this issue fully.

If I find any more information, fixes, or have a marked change in performance I'll be sure to update this thread for posterity.

FanOKnives · March 25, 2020

Exact same problem with Pop!_OS, happens on my brother's Pop install too. I don't use any display link monitors, as I only have the one, so I don't think it's to do with that. As for my brothers, he uses intel integrated graphics...

I can't seem to find any answers as to how to fix it, even though I usually run the game with shaders

Reveal hidden contents

[25Mar2020 19:39:50.537] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher running: args [--username, your_gay_mate, --version, 1.14.4-forge-28.2.0, --gameDir, /home/han/.minecraft, --assetsDir, /home/han/.minecraft/assets, --assetIndex, 1.14, --uuid, 894045bbb1df454abc2dfe61dd035572, --accessToken, ❄❄❄❄❄❄❄❄, --userType, mojang, --versionType, release, --launchTarget, fmlclient, --fml.forgeVersion, 28.2.0, --fml.mcVersion, 1.14.4, --fml.forgeGroup, net.minecraftforge, --fml.mcpVersion, 20190829.143755]
[25Mar2020 19:39:50.573] [main/INFO] [cpw.mods.modlauncher.Launcher/MODLAUNCHER]: ModLauncher 4.1.0+62+5bfa59b starting: java version 11.0.6 by Oracle Corporation
[25Mar2020 19:39:51.760] [main/INFO] [net.minecraftforge.fml.loading.FixSSL/CORE]: Added Lets Encrypt root certificates as additional trust
[25Mar2020 19:39:53.699] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file Mod File: /home/han/.minecraft/mods/1.14.4-OptiFine_HD_U_F5.jar is missing mods.toml file
[25Mar2020 19:39:53.700] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer/SCAN]: File /home/han/.minecraft/mods/1.14.4-OptiFine_HD_U_F5.jar has been ignored - it is invalid
[25Mar2020 19:39:53.701] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModFileParser/LOADING]: Mod file Mod File: /home/han/.minecraft/mods/betterhud-1.12.2-1.4.1.jar is missing mods.toml file
[25Mar2020 19:39:53.701] [main/WARN] [net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer/SCAN]: File /home/han/.minecraft/mods/betterhud-1.12.2-1.4.1.jar has been ignored - it is invalid
[25Mar2020 19:39:56.625] [main/INFO] [STDERR/]: [jdk.nashorn.api.scripting.NashornScriptEngine:<init>:143]: Warning: Nashorn engine is planned to be removed from a future JDK release
[25Mar2020 19:39:57.723] [main/INFO] [cpw.mods.modlauncher.LaunchServiceHandler/MODLAUNCHER]: Launching target 'fmlclient' with arguments [--version, 1.14.4-forge-28.2.0, --gameDir, /home/han/.minecraft, --assetsDir, /home/han/.minecraft/assets, --uuid, 894045bbb1df454abc2dfe61dd035572, --username, your_gay_mate, --assetIndex, 1.14, --accessToken, ❄❄❄❄❄❄❄❄, --userType, mojang, --versionType, release]
[25Mar2020 19:40:00.366] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
[25Mar2020 19:40:00.367] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:     at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:39)
[25Mar2020 19:40:00.367] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:     at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
[25Mar2020 19:40:00.367] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:     at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
[25Mar2020 19:40:00.367] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:     at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
[25Mar2020 19:40:00.368] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1050]:     at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
[25Mar2020 19:40:00.368] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]: Caused by: java.lang.reflect.InvocationTargetException
[25Mar2020 19:40:00.369] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[25Mar2020 19:40:00.369] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:     at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[25Mar2020 19:40:00.369] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:     at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[25Mar2020 19:40:00.370] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:     at java.base/java.lang.reflect.Method.invoke(Method.java:566)
[25Mar2020 19:40:00.370] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:     at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:56)
[25Mar2020 19:40:00.370] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:     at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
[25Mar2020 19:40:00.370] [Client thread/INFO] [STDERR/]: [java.lang.ThreadGroup:uncaughtException:1059]:     ... 4 more
[25Mar2020 19:40:00.371] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]: Caused by: java.lang.UnsupportedOperationException
[25Mar2020 19:40:00.371] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassVisitor.visitNestMemberExperimental(ClassVisitor.java:248)
[25Mar2020 19:40:00.371] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:651)
[25Mar2020 19:40:00.372] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
[25Mar2020 19:40:00.372] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83)
[25Mar2020 19:40:00.372] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35)
[25Mar2020 19:40:00.373] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:129)
[25Mar2020 19:40:00.373] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:525)
[25Mar2020 19:40:00.374] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
[25Mar2020 19:40:00.374] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83)
[25Mar2020 19:40:00.374] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35)
[25Mar2020 19:40:00.374] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:129)
[25Mar2020 19:40:00.375] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:525)
[25Mar2020 19:40:00.375] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
[25Mar2020 19:40:00.375] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83)
[25Mar2020 19:40:00.376] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:35)
[25Mar2020 19:40:00.376] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:129)
[25Mar2020 19:40:00.376] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:525)
[25Mar2020 19:40:00.376] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
[25Mar2020 19:40:00.377] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:83)
[25Mar2020 19:40:00.377] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.getSupers(TransformerClassWriter.java:54)
[25Mar2020 19:40:00.377] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformerClassWriter.getCommonSuperClass(TransformerClassWriter.java:99)
[25Mar2020 19:40:00.377] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.SymbolTable.addMergedType(SymbolTable.java:1209)
[25Mar2020 19:40:00.378] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.Frame.merge(Frame.java:1293)
[25Mar2020 19:40:00.378] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.Frame.merge(Frame.java:1175)
[25Mar2020 19:40:00.378] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.MethodWriter.computeAllFrames(MethodWriter.java:1604)
[25Mar2020 19:40:00.378] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.MethodWriter.visitMaxs(MethodWriter.java:1540)
[25Mar2020 19:40:00.379] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:807)
[25Mar2020 19:40:00.379] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:687)
[25Mar2020 19:40:00.379] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at org.objectweb.asm.tree.ClassNode.accept(ClassNode.java:436)
[25Mar2020 19:40:00.379] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:121)
[25Mar2020 19:40:00.379] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:241)
[25Mar2020 19:40:00.380] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:128)
[25Mar2020 19:40:00.380] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98)
[25Mar2020 19:40:00.380] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
[25Mar2020 19:40:00.380] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     at net.minecraft.client.main.Main.main(SourceFile:155)
[25Mar2020 19:40:00.381] [Client thread/INFO] [STDERR/]: [java.lang.Throwable:printStackTrace:648]:     ... 10 more
[25Mar2020 19:40:00.523] [Client Shutdown Thread/ERROR] [net.minecraft.client.main.Main/]: Caught previously unhandled exception :
java.lang.NullPointerException: null
    at cpw.mods.modlauncher.TransformerClassWriter.getCommonSuperClass(TransformerClassWriter.java:99) ~[modlauncher-4.1.0.jar:?]
    at org.objectweb.asm.SymbolTable.addMergedType(SymbolTable.java:1209) ~[asm-6.2.jar:?]
    at org.objectweb.asm.Frame.merge(Frame.java:1293) ~[asm-6.2.jar:?]
    at org.objectweb.asm.Frame.merge(Frame.java:1175) ~[asm-6.2.jar:?]
    at org.objectweb.asm.MethodWriter.computeAllFrames(MethodWriter.java:1604) ~[asm-6.2.jar:?]
    at org.objectweb.asm.MethodWriter.visitMaxs(MethodWriter.java:1540) ~[asm-6.2.jar:?]
    at org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:807) ~[asm-tree-6.2.jar:?]
    at org.objectweb.asm.tree.MethodNode.accept(MethodNode.java:687) ~[asm-tree-6.2.jar:?]
    at org.objectweb.asm.tree.ClassNode.accept(ClassNode.java:436) ~[asm-tree-6.2.jar:?]
    at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:121) ~[modlauncher-4.1.0.jar:?]
    at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:241) ~[modlauncher-4.1.0.jar:?]
    at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:128) ~[modlauncher-4.1.0.jar:?]
    at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:98) ~[modlauncher-4.1.0.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[?:?]
    at net.minecraft.client.main.Main$2.run(SourceFile:138) ~[?:?]

Edited March 25, 2020 by FanOKnives
fixed formatting

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