Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Container\Container" not found in C:\xampp\htdocs\my-app\my-new-app\vendor\laravel\framework\src\Illuminate\Container\Container.php:23 Stack trace: #0 {main} thrown in C:\xampp\htdocs\my-app\my-new-app\vendor\laravel\framework\src\Illuminate\Container\Container.php on line 23