Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Auth\UserProvider' not found in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\laravel\framework\src\Illuminate\Auth\DatabaseUserProvider.php:12 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_ir\vendor\laravel\framework\src\Illuminate\Auth\DatabaseUserProvider.php on line 12