Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Exception\RuntimeException" not found in C:\xampp\htdocs\fintraBackend\fi_bo\vendor\symfony\mailer\Exception\TransportException.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\fintraBackend\fi_bo\vendor\symfony\mailer\Exception\TransportException.php on line 17