java.lang.NoClassDefFoundError: com/google/gson/Gson

GitHub | futurmaster | 4 months ago
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    Createkit command not working on Spigot 1.8

    GitHub | 4 months ago | futurmaster
    java.lang.NoClassDefFoundError: com/google/gson/Gson
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    No class defined error

    GitHub | 10 months ago | harrisonhazza
    java.lang.NoClassDefFoundError: com/google/gson/Gson
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    Boot Error on Spigot 1.8.3

    GitHub | 1 year ago | hornemans
    java.lang.NoClassDefFoundError: net/citizensnpcs/api/CitizensPlugin
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    Email recovery doesn't work

    GitHub | 1 year ago | NIK220V
    org.apache.commons.lang.UnhandledException: Plugin AuthMe v5.0-SNAPSHOT generated an exception while executing task 56

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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    com.google.gson.Gson

    at java.net.URLClassLoader.findClass()
  2. Java RT
    URLClassLoader.findClass
    1. java.net.URLClassLoader.findClass(URLClassLoader.java:381)[?:1.8.0_91]
    1 frame
  3. Bukkit
    PluginClassLoader.findClass
    1. org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    2. org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    2 frames
  4. Java RT
    ClassLoader.loadClass
    1. java.lang.ClassLoader.loadClass(ClassLoader.java:424)[?:1.8.0_91]
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:357)[?:1.8.0_91]
    2 frames
  5. com.earth2me.essentials
    Commandcreatekit.<clinit>
    1. com.earth2me.essentials.commands.Commandcreatekit.<clinit>(Commandcreatekit.java:42)[EssentialsX-2.0.1.jar:?]
    1 frame
  6. Java RT
    Class.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)[?:1.8.0_91]
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)[?:1.8.0_91]
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)[?:1.8.0_91]
    4. java.lang.reflect.Constructor.newInstance(Constructor.java:423)[?:1.8.0_91]
    5. java.lang.Class.newInstance(Class.java:442)[?:1.8.0_91]
    5 frames
  7. com.earth2me.essentials
    Essentials.onCommand
    1. com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:434)[EssentialsX-2.0.1.jar:?]
    2. com.earth2me.essentials.Essentials.onCommand(Essentials.java:374)[EssentialsX-2.0.1.jar:?]
    2 frames
  8. Bukkit
    SimpleCommandMap.dispatch
    1. org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    2. org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    2 frames
  9. MC CraftBukkit
    CraftServer.dispatchCommand
    1. org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:646)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    1 frame
  10. MC Server
    PacketHandleTask.run
    1. net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1115)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    2. net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:950)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    3. net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    4. net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    5. net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    5 frames
  11. Java RT
    FutureTask.run
    1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[?:1.8.0_91]
    2. java.util.concurrent.FutureTask.run(FutureTask.java:266)[?:1.8.0_91]
    2 frames
  12. MC Server
    MinecraftServer.run
    1. net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:696)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    2. net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    3. net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    4. net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537)[spigot-1.8.jar:git-Spigot-c3c767f-33d5de3]
    4 frames
  13. Java RT
    Thread.run
    1. java.lang.Thread.run(Thread.java:745)[?:1.8.0_91]
    1 frame