Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Command\Command' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-developer/Console/Command/XmlConverterCommand.php:22 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-developer/Console/Command/XmlConverterCommand.php on line 22