Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DataCollector\DataCollector' not found in /home/benjamincb/demos/acdg/vendor/doctrine/doctrine-migrations-bundle/Collector/MigrationsCollector.php:14 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg/vendor/doctrine/doctrine-migrations-bundle/Collector/MigrationsCollector.php on line 14