Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Pipeline\Pipeline' not found in D:\xampp\htdocs\psp\backend\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php:11 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php on line 11