Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\xampp\htdocs\ducev\app\Http\Controllers\admin\Sitemap\SitemapController.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ducev\app\Http\Controllers\admin\Sitemap\SitemapController.php on line 18