java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin

Arqade | Rebecca | 6 months ago
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    java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
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Root Cause Analysis

  1. java.lang.NullPointerException

    No message provided

    at net.minecraft.launchwrapper.LaunchClassLoader.findClass()
  2. Minecraft
    LaunchClassLoader.findClass
    1. net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
    1 frame
  3. Java RT
    URLClassLoader.findClass
    1. java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    3. java.lang.ClassLoader.defineClass1(Native Method)
    4. java.lang.ClassLoader.defineClass(ClassLoader.java:760)
    5. java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    6. java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
    7. java.net.URLClassLoader.access$100(URLClassLoader.java:73)
    8. java.net.URLClassLoader$1.run(URLClassLoader.java:368)
    9. java.net.URLClassLoader$1.run(URLClassLoader.java:362)
    10. java.security.AccessController.doPrivileged(Native Method)
    11. java.net.URLClassLoader.findClass(URLClassLoader.java:361)
    11 frames
  4. Minecraft
    LaunchClassLoader.findClass
    1. net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
    1 frame
  5. Java RT
    Class.forName
    1. java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    3. java.lang.Class.forName0(Native Method)
    4. java.lang.Class.forName(Class.java:348)
    4 frames
  6. MC Forge
    FMLLaunchHandler.configureForClientLaunch
    1. cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:417)
    2. cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:346)
    3. cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:214)
    4. cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
    5. cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
    6. cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
    6 frames
  7. cpw.mods.fml
    FMLTweaker.injectIntoClassLoader
    1. cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
    1 frame
  8. Minecraft
    Launch.main
    1. net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
    2. net.minecraft.launchwrapper.Launch.main(Launch.java:28)
    2 frames