Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Transport\AbstractTransportFactory" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\mailer\Transport\NativeTransportFactory.php:24 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\mailer\Transport\NativeTransportFactory.php on line 24