Fatal error: Uncaught Error: Interface "Symfony\Component\Console\Descriptor\DescriptorInterface" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\console\Descriptor\Descriptor.php:27 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\console\Descriptor\Descriptor.php on line 27