Fatal error: Uncaught Error: Interface 'Symfony\Component\Runtime\RunnerInterface' not found in /home/benjamincb/demos/acdg/vendor/symfony/runtime/Runner/Symfony/ResponseRunner.php:20 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg/vendor/symfony/runtime/Runner/Symfony/ResponseRunner.php on line 20