Fatal error: Uncaught Error: Class "Symfony\Bundle\FrameworkBundle\Console\Descriptor\Descriptor" not found in /var/www/html/vendor/symfony/framework-bundle/Console/Descriptor/MarkdownDescriptor.php:30 Stack trace: #0 {main} thrown in /var/www/html/vendor/symfony/framework-bundle/Console/Descriptor/MarkdownDescriptor.php on line 30