Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Test\AbstractTransportFactoryTestCase" not found in I:\www\picman\vendor\symfony\mailer\Test\TransportFactoryTestCase.php:26 Stack trace: #0 {main} thrown in I:\www\picman\vendor\symfony\mailer\Test\TransportFactoryTestCase.php on line 26