Fatal error: Uncaught Error: Class "Symfony\Component\Console\Event\ConsoleEvent" not found in D:\xampp\htdocs\dropifypro\vendor\symfony\console\Event\ConsoleCommandEvent.php:19 Stack trace: #0 {main} thrown in D:\xampp\htdocs\dropifypro\vendor\symfony\console\Event\ConsoleCommandEvent.php on line 19