Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in C:\xampp\htdocs\cms-propay\vendor\spatie\laravel-short-schedule\src\ShortScheduleServiceProvider.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\cms-propay\vendor\spatie\laravel-short-schedule\src\ShortScheduleServiceProvider.php on line 8