Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Output\Output' not found in /home/devmecseminars/public_html/mec/vendor/symfony/console/Output/StreamOutput.php:30 Stack trace: #0 {main} thrown in /home/devmecseminars/public_html/mec/vendor/symfony/console/Output/StreamOutput.php on line 30