Fatal error: Uncaught Error: Class 'Spatie\LaravelPackageTools\PackageServiceProvider' not found in E:\xampp\htdocs\www\qr251\vendor\spatie\eloquent-sortable\src\EloquentSortableServiceProvider.php:8 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\qr251\vendor\spatie\eloquent-sortable\src\EloquentSortableServiceProvider.php on line 8