Target class [app\Http\Controllers\SerieController] does not exist.

Ja vi esse erro aqui no forum, tentei resolver de acordo com o que o pessoal falou, porem o erro persiste...

web.php

<?php

use Illuminate\Support\Facades\Route; use app\Http\Controllers\SerieController;

Route::get('/series', [SerieController::class, 'listarSeries']);

SerieController.php

<?php

namespace app\Http\Controllers;

class SerieController extends Controller { public function listarSeries() { //array $series = [ 'Lupin', 'Lucifer', 'Outer Banks', 'Virgen River' ];

   //usando html
       $html = "<ul>"; //criando a var html 
           foreach ($series as $s){
           $html .="<li>$s</li>"; //concatenando a var html
           }
           $html .= "</ul>"; //fechando a lista html

       return $html;

   }

}