Minecraft Java 1.12.2 服务器 Spigot 插件错误

Minecraft Java 1.12.2 Server Spigot Plugin error

我需要有关 Minecraft 服务器插件的帮助,我的服务器给我一个错误 Cannot find main class `harvey.plugin.jmsg.JoinMsg' 这是我的 Plugin.yml:

main: harvey.plugin.jmsg.JoinMsg
version: 10.1
author: harvey
commands:

这是我的插件本身

package harvey.plugin.jmsg;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class JoinMsg extends JavaPlugin implements Listener{

    @Override
    public void onEnable() {
        getServer().getPluginManager().registerEvents(this, this);
    }

    @Override
    public void onDisable() {

    }

    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent e) throws FileNotFoundException {
        Player p = e.getPlayer();
        String joianquitmsg = null;
        File joinquitmsg = new File("/CJAL/msg.txt");
        Scanner msginfo = new Scanner(joinquitmsg);
        e.setJoinMessage(joianquitmsg);
    }

    @EventHandler
    public void onPlayerQuit(PlayerQuitEvent e) {
        Player p = e.getPlayer();
        e.setQuitMessage(getName() + "Welcome!");
    }
}

有人能帮我吗那太好了! 我对此很陌生,所以任何提示都会有所帮助! :)

您可能在 IDE

中导出错误

尝试导出 src 和 plugin.yml ONLY