Fatal error: Uncaught Error: Class 'Illuminate\Support\Manager' not found in C:\xampp\htdocs\print-bk\vendor\laravel\framework\src\Illuminate\Mail\TransportManager.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\print-bk\vendor\laravel\framework\src\Illuminate\Mail\TransportManager.php on line 20