Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in /var/www/magento/html/app/code/BBNT/UpdateSimpleProducts/Console/Command/UpdateSimpleProductCommand.php:17 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/BBNT/UpdateSimpleProducts/Console/Command/UpdateSimpleProductCommand.php on line 17