Fatal error: Uncaught Error: Interface "Symfony\Contracts\Service\ServiceSubscriberInterface" not found in /home/pataplou/www/patrick/pataplouf/vendor/symfony/dependency-injection/Tests/Fixtures/TestServiceSubscriber.php:8 Stack trace: #0 {main} thrown in /home/pataplou/www/patrick/pataplouf/vendor/symfony/dependency-injection/Tests/Fixtures/TestServiceSubscriber.php on line 8