'An Internal error occurred while attempting to perform this command' error!

Please help me I've made my disguise plugin, and whenever I do /d pig I get this error in chat "An Internal error occurred while attempting to perform this command".

Here Is the Console Error When I Run This Command:

Code:

[06:38:58 INFO]: 123ang issued server command: /d pig
[06:38:58 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'd' i
n plugin Disguiser v1.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[cra
ftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
0) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServe
r.java:742) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerCon
nection.java:956) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java
:817) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java
:28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat
.java:47) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157
) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craf
tbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:6
67) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:2
60) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:5
58) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:469) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
Caused by: java.lang.NoClassDefFoundError: pgDev/bukkit/DisguiseCraft/disguise/D
isguiseType
        at me.angtim123.disguiser.Disguiser.getDisguiseType(Disguiser.java:45) ~
[?:?]
        at me.angtim123.disguiser.Disguiser.onCommand(Disguiser.java:29) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[cra
ftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        ... 13 more
Caused by: java.lang.ClassNotFoundException: pgDev.bukkit.DisguiseCraft.disguise
.DisguiseType
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_05]
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_05]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_
05]
        at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_05]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:77) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:62) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_05]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_05]
        at me.angtim123.disguiser.Disguiser.getDisguiseType(Disguiser.java:45) ~
[?:?]
        at me.angtim123.disguiser.Disguiser.onCommand(Disguiser.java:29) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[cra
ftbukkit.jar:git-Bukkit-1.7.9-R0.2-10-ge6cd8c0-b3096jnks]
        ... 13 more

I'm using the DisguiseCraft API. Here Is My ONLY Class Code:

Code:java

package me.angtim123.disguiser;
 
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import pgDev.bukkit.DisguiseCraft.DisguiseCraft;
import pgDev.bukkit.DisguiseCraft.api.DisguiseCraftAPI;
import pgDev.bukkit.DisguiseCraft.disguise.Disguise;
import pgDev.bukkit.DisguiseCraft.disguise.DisguiseType;
 
public class Disguiser extends JavaPlugin {
 
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        if (!(sender instanceof Player)) {
            sender.sendMessage(ChatColor.RED + "You cannot disguise yourself!");
            return true;
        }
 
        Player p = (Player) sender;
 
        if (command.getName().equalsIgnoreCase("disguiser")) {
            if (args.length == 0) {
                p.sendMessage(ChatColor.RED + "Please specify an entity type!");
                return true;
            }
 
            DisguiseType type = getDisguiseType(args[0]);
 
            if (type == null) {
                p.sendMessage(ChatColor.RED + "You specified an invalid disguise type.");
                return true;
            }
 
            DisguiseCraftAPI api = DisguiseCraft.getAPI();
 
            api.disguisePlayer(p, new Disguise(api.newEntityID(), type));
            p.sendMessage(ChatColor.GREEN + "You have been disguised as a(n) " + type.toString().toLowerCase() + "!");
        }
        return true;
    }
 
    private DisguiseType getDisguiseType(String arg) {
        for (DisguiseType type : DisguiseType.values()) {
            String t = type.toString().toUpperCase();
            if (arg.toUpperCase().equalsIgnoreCase(t)) return type;
        }
        return null;
    }
}

And finally here is my plugin.yml:

Code:

name: Disguiser
version: 1.0
main: me.angtim123.disguiser.Disguiser
author: 123ang
description: Disguise yourself!
 
commands:
    disguiser:
        usage: /<command>
        aliases: [d]
        description: Disguise yourself!

If someone could please help me it would extremely help me out!

 

First thing I am noticing is you don't even have an onEnable and onDisable method....

 

RenegadeEagle Okay I did that

Updated Main Class Code:

Code:java

package me.angtim123.disguiser;
 
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
import pgDev.bukkit.DisguiseCraft.DisguiseCraft;
import pgDev.bukkit.DisguiseCraft.api.DisguiseCraftAPI;
import pgDev.bukkit.DisguiseCraft.disguise.Disguise;
import pgDev.bukkit.DisguiseCraft.disguise.DisguiseType;
 
public class Disguiser extends JavaPlugin {
 
    public void onEnable(){
        getLogger().info("Disguiser has been enabled!");
    }
 
    public void onDisable(){
        getLogger().info("Disguiser has been disabled!");
    }
 
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        if (!(sender instanceof Player)) {
            sender.sendMessage(ChatColor.RED + "You cannot disguise yourself!");
            return true;
        }
 
        Player p = (Player) sender;
 
        if (command.getName().equalsIgnoreCase("disguiser")) {
            if (args.length == 0) {
                p.sendMessage(ChatColor.RED + "Please specify an entity type!");
                return true;
            }
 
            DisguiseType type = getDisguiseType(args[0]);
 
            if (type == null) {
                p.sendMessage(ChatColor.RED + "You specified an invalid disguise type.");
                return true;
            }
 
            DisguiseCraftAPI api = DisguiseCraft.getAPI();
 
            api.disguisePlayer(p, new Disguise(api.newEntityID(), type));
            p.sendMessage(ChatColor.GREEN + "You have been disguised as a(n) " + type.toString().toLowerCase() + "!");
        }
        return true;
    }
 
    private DisguiseType getDisguiseType(String arg) {
        for (DisguiseType type : DisguiseType.values()) {
            String t = type.toString().toUpperCase();
            if (arg.toUpperCase().equalsIgnoreCase(t)) return type;
        }
        return null;
    }
}
 

 

RenegadeEagle I do not believe the onEnable and onDisable methods are necessary, granted the class is an extension of a superclass which has those methods.
123ang Make sure that your imports are up to date with the library that you're using.

Code:

Caused by: java.lang.NoClassDefFoundError: pgDev/bukkit/DisguiseCraft/disguise/DisguiseType

Edit: Also, make sure that args[0] matches any case-sensitivity that it needs to. Try perhaps '/d Pig' instead?

 

Drkmaster83 No, I've checked all of the imports are correct, and if they weren't they would give me errors.

 

Just wondering, if the plugin uses DisguiseCraft API, that means the server would have to be running DisguiseCraft as well, but if DisguiseCraft already has an identical command for disguising players, doesn't that sort of defeat the purpose of this plugin?

 

Caused by: java.lang.ClassNotFoundException: pgDev.bukkit.DisguiseCraft.disguise
.DisguiseType
Regardless of the things said above, either the plugin is not on the server or you have an outdated version.

 

Figured out why this is happening, the DisguiseCraft is in my plugin folder, however for some reason when I do /plugins in-game it doesn't show up D: Anyone know why!

RenegadeEagle
Freelix2000
Drkmaster83

 

Disquisecraft may not be loading. This is now an issue that is for the Bukkit-Help section.

 

123ang
I think that means you've got an outdated DisguiseCraft, or an outdated server. You'll have to wait for a DisguiseCraft update. But really, what is the point of this plugin if its just a command that DisguiseCraft already has? =P

 

RenegadeEagle
Drkmaster83

Sorry to waste your time; I was using the 1.6.4 version of the plugin, not 1.7.9