My personal plugin don't work

Hello guys!

I need help my cmd gets me this error:

--------------------------------------------------------------------------------------------------------------------------------

Code:

Could not load 'plugins\HelloWorld.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: version is not defined
        at org.bukkit.plugin.PluginDescriptionFile.loadMap(PluginDescriptionFile.java:968) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.PluginDescriptionFile.<init>(PluginDescriptionFile.java:246) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:167) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:148) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.loadPlugins(CraftServer.java:360) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:234) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:900) ~[patched_1.15.2.jar:git-Paper-309]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]
Caused by: java.lang.NullPointerException
        at org.bukkit.plugin.PluginDescriptionFile.loadMap(PluginDescriptionFile.java:966) ~[patched_1.15.2.jar:git-Paper-309]
        ... 7 more
[18:07:20 ERROR]: Could not load 'plugins\Listeners.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: version is not defined
        at org.bukkit.plugin.PluginDescriptionFile.loadMap(PluginDescriptionFile.java:968) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.PluginDescriptionFile.<init>(PluginDescriptionFile.java:246) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:167) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:148) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.loadPlugins(CraftServer.java:360) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:234) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:900) ~[patched_1.15.2.jar:git-Paper-309]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]
Caused by: java.lang.NullPointerException
        at org.bukkit.plugin.PluginDescriptionFile.loadMap(PluginDescriptionFile.java:966) ~[patched_1.15.2.jar:git-Paper-309]
        ... 7 more

name: Listeners
verssion: 1.0
main: si.la.zan.listeners.Main


Is it possible that errors are because I have paper server?


Thanks Zanurban

 

What version I need to type it?

[14:18:39 ERROR]: Error occurred while enabling HelloWorld v1.0 (Is it up to date?)
java.lang.NullPointerException: null
at si.la.zan.helloworld.commands.HelloCommand.<init>(HelloCommand.java:17) ~[?:?]
at si.la.zan.helloworld.Main.onEnable(Main.java:11) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.15.2.jar:git-Paper-309]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:380) ~[patched_1.15.2.jar:git-Paper-309]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:483) ~[patched_1.15.2.jar:git-Paper-309]
at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugin(CraftServer.java:472) ~[patched_1.15.2.jar:git-Paper-309]
at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugins(CraftServer.java:386) ~[patched_1.15.2.jar:git-Paper-309]
at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:488) ~[patched_1.15.2.jar:git-Paper-309] at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:298) ~[patched_1.15.2.jar:git-Paper-309]
at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:900) ~[patched_1.15.2.jar:git-Paper-309]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]



should I use spigot 1.15.2?

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

 

What means api?

Code:

package si.la.zan.helloworld.commands;

import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import si.la.zan.helloworld.Main;
import org.bukkit.entity.Player;

public class HelloCommand implements CommandExecutor {

    @SuppressWarnings("unused")
    private Main plugin;
 
    public HelloCommand(Main plugin) {
     
        this.plugin = plugin;
        plugin.getCommand("hello").setExecutor(this);
    }
 
    @Override
    public boolean onCommand(CommandSender sender, Command cmd,String label,
            String[] args) {
        if (!(sender instanceof Player)){
            sender.sendMessage("Only players have permission to do this!");
            return true;
        }
        Player player = (Player) sender;
     
        if(player.hasPermission("hello.use")){
            player.sendMessage("Hello");
            return true;
        }
        else {
            player.sendMessage("You do not have permission to do that");
        }
     
        return false;
    }
}

+ Main

Code:

package si.la.zan.helloworld;

import org.bukkit.plugin.java.JavaPlugin;

import si.la.zan.helloworld.commands.HelloCommand;

public class Main extends JavaPlugin{
  
    @Override
    public void onEnable(){
        new HelloCommand(this);
    }
  
}

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

 

this?

name: HelloWorld
version: 1.0
main: si.la.zan.helloworld.Main

 

oh tanks

Code:

name: Listeners
version: 1.0
main: si.la.zan.listeners.Main

commands:
  hello:
    aliases: [hi]

Code:

14:47:36 INFO]: [HelloWorld] Enabling HelloWorld v1.0*
[14:47:36 ERROR]: Error occurred while enabling HelloWorld v1.0 (Is it up to date?)
java.lang.NullPointerException: null
        at si.la.zan.helloworld.commands.HelloCommand.<init>(HelloCommand.java:17) ~[?:?]
        at si.la.zan.helloworld.Main.onEnable(Main.java:11) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:263) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:380) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:483) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugin(CraftServer.java:472) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.enablePlugins(CraftServer.java:386) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.reload(CraftServer.java:893) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.Bukkit.reload(Bukkit.java:666) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:54) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.dispatchCommand(CraftServer.java:761) ~[patched_1.15.2.jar:git-Paper-309]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.dispatchServerCommand(CraftServer.java:723) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.DedicatedServer.handleCommandQueue(DedicatedServer.java:469) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:431) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1173) ~[patched_1.15.2.jar:git-Paper-309]
        at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:962) ~[patched_1.15.2.jar:git-Paper-309]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_251]

All working tanks

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