Solved My main file does not extend JavaPlugin?

Hello so im very new to development and I tried making a simple /fly plugin. I coded everything and exported it only for it to say "me.artourious.customessentials.Main' does not extend JavaPlugin." I checked my Main.java file and it does extend javaplugin? What should I do to fix this? (Im actually on 1.15.2 but there was no option for it so I chose 1.15.1)

Code (Java):

package me.artourious.customessentials;

import org.bukkit.plugin.java.JavaPlugin;

import me.artourious.customessentials.commands.FlyCommand;

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

}
 

 

That was indeed the problem! Thank you for your help