Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DataCollector\DataCollector" not found in /home/mmi24f01/public_html/ws301/vendor/doctrine/doctrine-migrations-bundle/src/Collector/MigrationsCollector.php:20 Stack trace: #0 {main} thrown in /home/mmi24f01/public_html/ws301/vendor/doctrine/doctrine-migrations-bundle/src/Collector/MigrationsCollector.php on line 20