Fatal error: Uncaught Error: Class 'Illuminate\Support\ServiceProvider' not found in C:\xampp\htdocs\rabani-laravel-firebird\vendor\laravel\framework\src\Illuminate\Auth\AuthServiceProvider.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\rabani-laravel-firebird\vendor\laravel\framework\src\Illuminate\Auth\AuthServiceProvider.php on line 13