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  1. Minecraft: Java Edition
  2. MC-165639

Crashes whilst initializing game

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    • Icon: Bug Bug
    • Resolution: Invalid
    • None
    • 19w46b
    • None
    • Unconfirmed
    • (Unassigned)

      BTW, I have never used Jira before and I wasn't sure what to select for version, but I'm on 1.8.9 if that's important.

      This has been happening since i downloaded a few mods, today.

      I press play, it loads, opens minecraft, minecraft loads, and then it proceeds to crash and go back to the launcher.

      This is the message I got when it went back to the launcher:

      The game crashed whilst initializing game
      Error: java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen

      Here is the crash report:

      ---- Minecraft Crash Report -------- Minecraft Crash Report ----
      WARNING: coremods are present:  FMLLoadingPlugin (MemoryFix-0.3.jar)  RenderPlayerAPIPlugin (MouseDelayFix-1.0.jar)Contact their authors BEFORE contacting forge
      // You're mean.
      Time: 11/14/19 6:24 PMDescription: Initializing game
      java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:760) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.apache.logging.log4j.core.impl.ThrowableProxy.loadClass(ThrowableProxy.java:459) at org.apache.logging.log4j.core.impl.ThrowableProxy.resolvePackageData(ThrowableProxy.java:395) at org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:97) at org.apache.logging.log4j.core.impl.Log4jLogEvent.<init>(Log4jLogEvent.java:114) at org.apache.logging.log4j.core.impl.Log4jLogEvent.<init>(Log4jLogEvent.java:90) at org.apache.logging.log4j.core.impl.DefaultLogEventFactory.createEvent(DefaultLogEventFactory.java:49) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:365) at org.apache.logging.log4j.core.Logger.log(Logger.java:110) at org.apache.logging.log4j.spi.AbstractLogger.log(AbstractLogger.java:1448) at net.minecraftforge.fml.relauncher.FMLRelaunchLog.log(FMLRelaunchLog.java:83) at net.minecraftforge.fml.common.FMLLog.log(FMLLog.java:40) at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:138) at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:559) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:243) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:417) at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:329) at net.minecraft.client.main.Main.main(SourceFile:124) 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:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 35 more

      A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
      – Head --Stacktrace: at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:760) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.apache.logging.log4j.core.impl.ThrowableProxy.loadClass(ThrowableProxy.java:459) at org.apache.logging.log4j.core.impl.ThrowableProxy.resolvePackageData(ThrowableProxy.java:395) at org.apache.logging.log4j.core.impl.ThrowableProxy.<init>(ThrowableProxy.java:97) at org.apache.logging.log4j.core.impl.Log4jLogEvent.<init>(Log4jLogEvent.java:114) at org.apache.logging.log4j.core.impl.Log4jLogEvent.<init>(Log4jLogEvent.java:90) at org.apache.logging.log4j.core.impl.DefaultLogEventFactory.createEvent(DefaultLogEventFactory.java:49) at org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:365) at org.apache.logging.log4j.core.Logger.log(Logger.java:110) at org.apache.logging.log4j.spi.AbstractLogger.log(AbstractLogger.java:1448) at net.minecraftforge.fml.relauncher.FMLRelaunchLog.log(FMLRelaunchLog.java:83) at net.minecraftforge.fml.common.FMLLog.log(FMLLog.java:40) at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:138) at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:559) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:243) at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:417)
      – Initialization --Details:Stacktrace: at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:329) at net.minecraft.client.main.Main.main(SourceFile:124) 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:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
      – System Details --Details: ct.js modules: ~ERROR~ NullPointerException: null Minecraft Version: 1.8.9 Operating System: Windows 10 (amd64) version 10.0 CPU: 4x AMD A12-9800 RADEON R7, 12 COMPUTE CORES 4C+8G  Java Version: 1.8.0_51, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1005885320 bytes (959 MB) / 1308622848 bytes (1248 MB) up to 2147483648 bytes (2048 MB) JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP 9.19 Powered by Forge 11.15.1.2318 Optifine OptiFine_1.8.9_HD_U_H8 17 mods loaded, 17 mods active States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored UCH mcp{9.19} [Minecraft Coder Pack] (minecraft.jar)  UCH FML{8.0.99.99} [Forge Mod Loader] (forge-1.8.9-11.15.1.2318-1.8.9.jar)  UCH Forge{11.15.1.2318} [Minecraft Forge] (forge-1.8.9-11.15.1.2318-1.8.9.jar)  UCH RenderPlayerAPI{1.0} [Render Player API] (minecraft.jar)  UCE ct.js{0.16.5-SNAPSHOT} [ChatTriggers] (ChatTriggers.jar)  UCH blockoverlay{2.1} [BlockOverlay] ([1.8.9] BlockOverlay-v2.1.jar)  UCH autogg{2.0.4} [Auto GG] (AutoGG-2.0.4 (1.8.9).jar)  UCH autotip{3.0} [Autotip] (Autotip-3.0 [1.8-1.12.2].jar)  UCH ChromaHUD{3.0} [Chroma HUD] (ChromaHUD-3.0.jar)  UCH IngameAccountSwitcher{bp1.8.9(6.0.3.27)} [In-Game Account Switcher] (InGameAccountSwitcher-Forge-bp1.8.X(6.0.3.27).jar)  UCH memoryfix{0.3} [MemoryFix] (MemoryFix-0.3.jar)  UCH oldanimations{2.3} [oldanimations] (OldAnimationsMod v2.3.1 FORGE MC1.8.9.jar)  UCH Particle_Mod{6.9} [Particle_Mod] (Particle Mod 1.8.8 Forge.jar)  UCH hypixel_auto_complete{1.0} [Hypixel Autocomplete Mod] (Sk1er Hypixel Autocomplete Mod-1.0.jar)  UCH keystrokesmod{5.0.1} [KeystrokesMod] (Sk1er KeystrokesMod-5.0.1 (1.8.9).jar)  UCH timechanger{1.0} [TimeChanger] (TimeChanger-1.0 (1.8.9).jar)  UCH enhancements{7.4} [Vanilla Enhancements] (Vanilla Enhancements-7.4.jar)  Loaded coremods (and transformers): FMLLoadingPlugin (MemoryFix-0.3.jar)  io.prplz.memoryfix.ClassTransformerRenderPlayerAPIPlugin (MouseDelayFix-1.0.jar)  api.player.forge.RenderPlayerAPITransformer GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13497 Compatibility Profile Context 23.20.843.512' Renderer: 'AMD Radeon R7 Graphics' Launched Version: 1.8.9-forge1.8.9-11.15.1.2318-1.8.9 LWJGL: 2.9.4 OpenGL: AMD Radeon R7 Graphics GL version 4.5.13497 Compatibility Profile Context 23.20.843.512, ATI Technologies Inc. GL Caps: Using GL 1.3 multitexturing.Using GL 1.3 texture combiners.Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.Shaders are available because OpenGL 2.1 is supported.VBOs are available because OpenGL 1.5 is supported.
      Using VBOs: No Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (map_client.txt) Resource Packs: ! §9Pastelic §8[§9Blue§8].zip Current Language: English (US) Profiler Position: N/A (disabled) CPU: 4x AMD A12-9800 RADEON R7, 12 COMPUTE CORES 4C+8G 

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              Created:
              Updated:
              Resolved: