Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Container\Container' not found in C:\xampp\htdocs\admin\vendor\laravel\framework\src\Illuminate\Container\Container.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\laravel\framework\src\Illuminate\Container\Container.php on line 17