Fatal error: Uncaught Error: Interface "Symfony\Component\Notifier\Message\MessageInterface" not found in /home/pataplou/www/patrick/pataplouf/vendor/symfony/notifier/Message/NullMessage.php:17 Stack trace: #0 {main} thrown in /home/pataplou/www/patrick/pataplouf/vendor/symfony/notifier/Message/NullMessage.php on line 17