Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in C:\xampp\htdocs\hannoole\POS\vendor\jackiedo\timezonelist\src\TimezonelistServiceProvider.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hannoole\POS\vendor\jackiedo\timezonelist\src\TimezonelistServiceProvider.php on line 15