Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in C:\xampp\htdocs\hannoole\PMS\vendor\graham-campbell\markdown\src\MarkdownServiceProvider.php:38 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hannoole\PMS\vendor\graham-campbell\markdown\src\MarkdownServiceProvider.php on line 38