Solved Economy Plugin prototype could not load

Hi! so... I started trying to programm this plugin myself, but I ran inst some problems(the console says"Could not load 'plugins/Talon.jar' in folder 'plugins'").can someone help me?Please?
Btw..its just a prototyp and does not have all the features I want yet...Because Its my first Plug in and I am a noob, I would like to save the talons of each player in the config file... now I don't know where the problem is I will send my whole code...be carefull..its messy

Main:

Code:

package com.agreenpig.talon.main;


import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

import com.agreenpig.talon.command.HelpCommand;
import com.agreenpig.talon.command.SetCommand;
import com.agreenpig.talon.command.TalonCommand;
import com.agreenpig.talon.listeners.JoinListener;

public class Main extends JavaPlugin{

   private static Main plugin;
   @Override
   public void onEnable() {
     plugin= this;
  
     getLogger().info("Talon wunde aktiviert");
  
     PluginManager pm= getServer().getPluginManager();
     JoinListener listner=new JoinListener(plugin);
     pm.registerEvents(listner, plugin);
  
     getCommand("talon").setExecutor(new TalonCommand());
     getCommand("talonHelp").setExecutor(new HelpCommand());
     getCommand("talonSet").setExecutor(new SetCommand());
  
  
   }
   public void onDissable() {
  
     getLogger().info("Talon wurde ausgeschalten");
   }
   public static Main getPlugin() {
     return plugin;
   }


}

Listner:

Code:

package com.agreenpig.talon.listeners;


import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;

import com.agreenpig.talon.main.Main;

public class JoinListener implements Listener{
 
    public JoinListener(Main plugin) {
     
    }
 
    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent event) {
        FileConfiguration config= Main.getPlugin().getConfig();
        config.set(event.getPlayer().getName(), "0");
        Main.getPlugin().saveConfig();
    }
}

Help Command:

Code:

package com.agreenpig.talon.command;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;

import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import com.agreenpig.talon.main.Main;



public class HelpCommand implements CommandExecutor{
   public boolean onCommand(CommandSender sender, Command cmd, String label, String[] arg) {
     Player player= (Player) sender;
  
     if (sender instanceof Player) {
       player.sendMessage(ChatColor.GOLD+"=============Talon==============\n/talon (zeigt dir, wie viele Talons du hast)");
     }
     else {
       Main.getPlugin().getLogger().info("=============Talon==============\n/talon (zeigt dir, wie viele Talons du hast)");
     }
     return true;
   }
}

SetCommand:

Code:

package com.agreenpig.talon.command;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;

import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.entity.Player;

import com.agreenpig.talon.main.Main;



public class SetCommand implements CommandExecutor {
   public boolean onCommand(CommandSender sender, Command cmd, String label, String[] arg) {
     Player player= (Player) sender;
     FileConfiguration config= Main.getPlugin().getConfig();
       if (arg.length==2) {
         if (Main.getPlugin().getConfig().contains(arg[1])) {
           if (arg[2].charAt(0)=='-'||arg[2].length()>=11) {
             if (sender instanceof Player) {
               player.sendMessage(ChatColor.RED+"Nur werte über 0 und unter 999999999999 sind erlaubt!");
             }
             else {
               Main.getPlugin().getLogger().info("Nur werte über 0 und unter 999999999999 sind erlaubt!");
             }
           }
           else {
             config.set(arg[1], arg[2]);
             Main.getPlugin().saveConfig();
           }
         }
         else {
           if (sender instanceof Player) {
             player.sendMessage(ChatColor.RED+"Dieser Spieler muss erst joinen um seinen account ändern zu können");
           }
           else {
             Main.getPlugin().getLogger().info("Dieser Spieler muss erst joinen um seinen account ändern zu können");
           }
         }
       }
       else {
         if (sender instanceof Player) {
           player.sendMessage(ChatColor.RED+"Benutze bitte: "+ChatColor.GOLD+"/talon set <Player> <TalonAmount>");
         }
         else {
           Main.getPlugin().getLogger().info("Benutze bitte: /talon set <Player> <TalonAmount>");
         }
       }
  
     return true;
   }
}

TalonCommand:

Code:

package com.agreenpig.talon.command;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;

import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import com.agreenpig.talon.main.Main;

public class TalonCommand implements CommandExecutor{
   public boolean onCommand(CommandSender sender, Command cmd, String label, String[] arg) {
     Player player= (Player) sender;
     if (arg.length==0) {
       if (sender instanceof Player) {
         player.sendMessage(ChatColor.GOLD+"DuHast "+ChatColor.YELLOW+Main.getPlugin().getConfig().getString(player.getName()+ChatColor.GOLD+" Talons!"));
       }
       else {
         Main.getPlugin().getLogger().info("Das kannst du nur als Spieler");
       }
     }
  
     return true;
   }

}

and the plugin.yml

Code:

name: Talon
main: com.agreenpig.talon.Main
version: 1.0

commands:
   talon:
     description: Zeigt dir dein Geld
   talonHelp:
     description: Gibt dir Hilfe
   talonSet:
     description: Setzt Das Geld Eines Spielers.

PS: I'm austrian and some parts like Messages are in german...I don't think that is a big problem thogh because it is just a message.

I would love it if someone could Help me!

 

https://pastebin.com/NnMuEVji

Is this correct? I'm sorry! I'm new to this stuff

 

Ok I changed the yml but now it still doesn't work...https://pastebin.com/7sssmFQ6

 

I think we're getting closer...somehow I only exported one package... still have an Error unfortunatly.https://pastebin.com/teM7ucSK

 

Well I had Installation Problems with eclipse in General. I Had to compleatly reinstall the jdk and Eclipse and was Just happy that it worked (Sort of). Should I maybe install a different ide(Like Intellij) and Copy my Code over?

 

What version did you use to compile and what to run the server xd?
Seems to be a version mismatch error thingy ;-;

 

I have JDK 12 installed but I'm running JavaSE-10...My Complier is compliance level 10, but I tried changing and it still doesn't work... Programming on Spigot 1.14 and my server is on 1.14.2.Is that a problem?

 

Yes it worked! I had to compleatly reinstall the newest eclipse and changed the build path to 1.8! Thanks!

 

Why would you need to reinstall Eclipse?

 

I don't know... I Had Eclipse Photon installed and if I tried to Change the bulid path to JavaSE-8 It would give me an Error by my package. I installed Eclipse 2019-03 and then IT worked perfectly!

This was my Error:
The type java.lang.Object cannot be resolved. It is indirectly referenced from required .class files

But honestly I don't Care why it works, Just THAT it works