Plugin not detecting

My plugin does not detecting by Pocketmine-mp
> plugins
> Plugins (0):
But plugin exists in the folder
My plugin code is attached

 

Look in the console to see why the plugin wasn't loaded.

Are you using the right API version?
Are you using the right namespaces?

 

Update it to this, enable devtools.

PHP:

<?php

namespace Main;

use pocketmine\event\Listener;
use pocketmine\plugin\PluginBase;

class MainClass extends PluginBase implements Listener {

          public function onLoad(){
                    $this->getLogger()->info("Plugin Loading");
          }

          public function onEnable(){
                    $this->getLogger()->info("Enabled Plugin");
          }

          public function onDisable(){
                    $this->getLogger()->info("Plugin Disabled");
          }
}

PHP:

name: MyPlugin
main: Main/MainClass
version: 1.0.0
author: GEOEGII555
api: 3.0.0
description: "My Plugin!"


Choose one API and stick with it... You can't have multiple versions. (API 2 & API 3 are completely different versions of PocketMine)