ProtocolLib loading error in my plugin

Error: http://pastebin.com/zwc43PRZ

Code:

name: HidePlayers
main: fr.taeron.hideplayers.EntityListener
author: Taeron
version: 0.1
commands:
  hideplayer:
    description: Hide or show a player.

Code:

package fr.taeron.hideplayers;

import java.util.Set;

import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;

import com.comphenix.protocol.PacketType;
import com.comphenix.protocol.ProtocolLibrary;
import com.comphenix.protocol.events.PacketAdapter;
import com.comphenix.protocol.events.PacketEvent;
import com.google.common.collect.Sets;

public class EntityListener extends JavaPlugin {
    private Set<String> ignoreTabList = Sets.newHashSet();
  
    @Override
    public void onEnable() {
        Bukkit.getLogger().info("§aHidePlayers fonctionne");
        ProtocolLibrary.getProtocolManager().addPacketListener(
          new PacketAdapter(this, PacketType.Play.Server.PLAYER_INFO) {
            @Override
            public void onPacketSending(PacketEvent event) {
                String name = event.getPacket().getStrings().read(0);
              
                if (ignoreTabList.contains(name)) {
                    event.setCancelled(true);
                }
            }
        });
    }
  
    private void ignore(Player player) {
        ignoreTabList.add(player.getPlayerListName());
    }
  
    public void unignore(Player player) {
        ignoreTabList.remove(player.getPlayerListName());
    }
  
    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        if (command.getName().equalsIgnoreCase("hideplayer")){
           if (args.length != 1) {
               sender.sendMessage("§cMerci de préciser le joueur.");
           } else if (sender instanceof Player) {
               Player observer = (Player) sender;
               Player player = getServer().getPlayer(args[0]);
              
               // Stop sending tab list packets about this player
               ignore(player);
              
               if (observer.canSee(player)) {
                   observer.hidePlayer(player);
               } else {
                   observer.showPlayer(player);
               }
              
               unignore(player);
           }
           return true;
    }
        return false;
  }
}

Why?

 

@Taeron
Are you sure the plugin has Protocol Lib enabled/installed on your server? Are you sure you have the newest version of Protocol Lib.

 

Why do you need protocolLib for this? Ypu need tk add the depend tag to the plugin.yml

 

k I had forgotten to put depend: [ProtocolLib] in my plugin.yml, solved thanks ._.

 

Mark the thread as solved