Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Test\AbstractTransportFactoryTestCase" not found in /home/neondra/www/vendor/symfony/mailer/Tests/Transport/NullTransportFactoryTest.php:22 Stack trace: #0 {main} thrown in /home/neondra/www/vendor/symfony/mailer/Tests/Transport/NullTransportFactoryTest.php on line 22