Solved Error occurred while enabling extraCommands v1.0 (Is it up to date?)

Hey Guys,
I slowly want to become a Developer,
I first started to code a Feed Plugin.
But i have an error, i cant fix
My Main:

Code:

package org.Futurekiller45.Server.main;

import org.Futurekiller45.Server.commands.Feed_Command;
import org.bukkit.Bukkit;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin {
  
    @Override
    public void onEnable() {
        getCommand("feed").setExecutor(new Feed_Command());
        Bukkit.getPluginManager().registerEvents(new Feed_Command(), this);
    }
  
}

My Feed_Command:

Code:

package org.Futurekiller45.Server.commands;

import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.Listener;

public  class Feed_Command implements CommandExecutor, Listener{

    public boolean onCommand(CommandSender s, Command cmd, String l, String[] args) {
            if(s instanceof Player ) {
                Player p = (Player) s;
                if(p.hasPermission("Commands.feed")) {
                    if(args.length == 1) {
                        p.sendMessage("§aDu wurdest nun bis zum Rand voll gepumpt mit Essen!");
                        p.setFoodLevel(20);
                    }else if(args.length == 1);
                      
                    }else
                    p.sendMessage("§3 /feed <Name>");
                    p.setFoodLevel(20);
            }
              
        return false;
      
    }
  
}

My plugin.yml:

Code:

Author: Futurekiller45
name: extraCommands
version: 1.0
main: org.Futurekiller45.Server.main.Main
api-version: 1.12.2
commands:
feed:
   description: futter dich hoch!
   usage: /<command>
   permission: Commands.feed

Console Error:

Code:

[14:50:17 ERROR]: Error occurred while enabling extraCommands v1.0 (Is it up to date?)
java.lang.NullPointerException: null
        at org.Futurekiller45.Server.main.Main.onEnable(Main.java:11) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[spigot.jar:git-Spigot-dcd1643-e60fc34]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:403) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:381) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:330) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:422) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:383) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:338) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:272) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:545) [spigot.jar:git-Spigot-dcd1643-e60fc34]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]

 

@Futurekiller45
1. If you need to register something more than once, create a variable that points to 1 instance of that class.
2. A CommandExecutor doesn't need to be a Listener. (which means you don't need to register it with the PluginManager)
3. You need to format your plugin.yml file correctly, here's how the command section should look:

Code:

commands:
  feed:
    description: ...
    usage: ...
    permission: ...

 

Thanks man, now it is working ;D