Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Command\Command' not found in /var/www/app/appregwebservice/vendor/symfony/console/Command/DumpCompletionCommand.php:28 Stack trace: #0 {main} thrown in /var/www/app/appregwebservice/vendor/symfony/console/Command/DumpCompletionCommand.php on line 28