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