Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in D:\laragon\www\placeo\vendor\kalnoy\nestedset\src\NestedSetServiceProvider.php:8 Stack trace: #0 {main} thrown in D:\laragon\www\placeo\vendor\kalnoy\nestedset\src\NestedSetServiceProvider.php on line 8