I have an error and i don't know what the problem is. code: Code: package me.newban.newban; import org.bukkit.Bukkit; import org.bukkit.ChatColor; import org.bukkit.command.Command; import org.bukkit.command.CommandExecutor; import org.bukkit.command.CommandSender; import org.bukkit.entity.Player; public class BanExecutor implements CommandExecutor{ private newban plugin; protected ListStore bannedPeople; public BanExecutor(newban plugin){ this.plugin = plugin; } @Override public boolean onCommand(CommandSender sender, Command command, String label, String[] args) { Player player = null; Player ban = Bukkit.getPlayer(args[0]); //<------ line 22 if(sender instanceof Player){ player = (Player) sender; } if(!sender.hasPermission("ban.newban")){ sender.sendMessage(ChatColor.RED + "You may not use this command!"); return true; } if (args.length < 0 && sender.hasPermission("ban.newban")){ sender.sendMessage(ChatColor.RED + "Usage: /nb <player_name> [message]"); return true; } String message = ""; if(args.length > 1){ for (int i = 1; i < args.length; ++i){ message += args[i] + " "; } }else{ message = "You have been banned!"; } if(player == null && !plugin.bannedPeople.contains(args[0])){ sender.sendMessage("Player:" + args[0] + " Has been banned " + "[" + message + "]"); } if(ban != null){ ban.kickPlayer(message); } if(args.length > 0 && !plugin.bannedPeople.contains(args[0])){ Bukkit.broadcastMessage(ChatColor.GREEN + args[0] + " has been banned " + "[" + message + "]"); } plugin.bannedPeople.add(args[0]); return true; } } Error: Code: org.bukkit.command.CommandException: Unhandled exception executing command 'nb' in plugin Newban v1.3.1 at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42) at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:168) at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:492) at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:878) at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:825) at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:807) at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44) at net.minecraft.server.NetworkManager.b(NetworkManager.java:276) at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109) at net.minecraft.server.ServerConnection.b(SourceFile:35) at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30) at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:581) at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212) at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406) at net.minecraft.server.ThreadServerApplication.run(SourceFile:539) Caused by: java.lang.ArrayIndexOutOfBoundsException: 0 at me.newban.newban.BanExecutor.onCommand(BanExecutor.java:22) at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40) ... 15 more how do i fix this?
It means that args[0] doesn't exist. Check and make sure that the length of args is at least 1 before attempting to use any part of the array.