Fatal error: Uncaught Error: Class "Symfony\Component\Form\Console\Descriptor\Descriptor" not found in /var/www/crm_killing_ninja/vendor/symfony/form/Console/Descriptor/TextDescriptor.php:26 Stack trace: #0 {main} thrown in /var/www/crm_killing_ninja/vendor/symfony/form/Console/Descriptor/TextDescriptor.php on line 26