Solved Plugin won't work

This is my source code:

Code:Java

 
package appPlus;
 
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
 
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
 
public class ApplicationPlus extends JavaPlugin {
 
@Override
public void onEnable() {
getLogger().info("onEnable has been invoked!");
}
 
@Override
public void onDisable() {
getLogger().info("onDisable has been invoked");
}
 
public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
if (cmd.getName().equalsIgnoreCase("ap")) {
Player p = (Player) sender;
StringBuilder sb = new StringBuilder(args[0]);
for (int i = 1; i < args.length; i++) {
sb.append(" ").append(args[I]);[/I]
[I] }[/I]
String endSuggest = sb.toString();
try {
PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter("applications.txt", true)));
out.println(p.getDisplayName());
out.println(endSuggest);
out.close();
return true;
} catch (IOException e) {
return true;
}
}
return false;
}
 
} 

and this is my plugin.yml:

Code:text

 
name: Application+
main: appPlus.ApplicationPlus
author: idontcare1025
version: 1.0
commands:
ap:
description: This command stores a user's application for staff.
usage: /<command> [application]
permission: <plugin name>.send
permission-message: You don't have <permission>
 

Folder System:

Applications+>src>appPlus>ApplicationsPlus
Applications+>src>resources>plugin.yml




Can anyone tell me why the plugin won't work?

 

idontcare1025
I don't know if bukkit messed your formatting up, but your plugin.yml is white-space sensitive. Make sure you have 2 spaces per indent like so:

Code:text

commands:
  ap:
    description: Blah
    usage: ....

Type /plugin in game and see if it shows your plugin as green.
Also, your StringBuilder sb = new StringBuilder(args[0]); will give you an NPE if there are no arguments supplied, so surround it in an if statement:

Code:java

if (args.length > 0){

Other than that, is there a stack trace error?

 

Also, please use ["syntax=Java"]["/syntax"] (without quotes) whenever posting your code. It makes it a lot cleaner.

 

idontcare1025
What isn't working?

 

main: appPlus.ApplicationPlus

You need to provide the project name, the package name, and the class name, like this:

"ExampleProject.examplepackage.ExampleClass"

 

When I run the commands it says "Unknown Command"

 

Have you registered the command in your plugin.yml? Check here.

 

It won't appear in /plugins eithier

and i did

Still doesn't work

Bukkit just messed up my formatting and how do I check if there's a stack trace error, and if there is one, how do I fix it?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

idontcare1025
You will see it as an error in your server's console. It will look something like:

Stack Trace (open) Stack Trace (close)

Code:text

10:33:40 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'YourCommand' in plugin YourPlugin v0.1
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:192)
        at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchCommand(CraftServer.java:523)
        at net.minecraft.server.v1_6_R3.PlayerConnection.handleCommand(PlayerConnection.java:959)
        at net.minecraft.server.v1_6_R3.PlayerConnection.chat(PlayerConnection.java:877)
        at net.minecraft.server.v1_6_R3.PlayerConnection.a(PlayerConnection.java:834)
        at net.minecraft.server.v1_6_R3.Packet3Chat.handle(SourceFile:49)
        at net.minecraft.server.v1_6_R3.NetworkManager.b(NetworkManager.java:296)
        at net.minecraft.server.v1_6_R3.PlayerConnection.e(PlayerConnection.java:116)
        at net.minecraft.server.v1_6_R3.ServerConnection.b(SourceFile:37)
        at net.minecraft.server.v1_6_R3.DedicatedServerConnection.b(SourceFile:30)
        at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:592)
        at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:227)
        at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:488)
        at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:421)
        at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 1
        at com.gusgold.YourPlugin.Commands.onCommand(Commands.java:48)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
        ... 15 more

In this case, it is because I tried to access an index of an array that is not set. You can tell what caused it by line 19, and where it occurred on line 20.

 

First line 26, 27 'The type of the expression must be an array type but it resolved to StringBuilder'. And your "{,}" are off.

 

idontcare1025
Generally I have noticed that errors in the plugin.yml don't cause errors in the Stack Trace. I could be wrong, that's just what I have seen.

Just repaste the code. It would be EXTREMELY helpful if we could see the exact spacing of your plugin.yml

 

Thanks I fixed it because of you! Unknown symbol in plugin name

 

idontcare1025 Mark the thread as solved on your way out