Fatal error: Uncaught Error: Class 'Symfony\Component\Form\Console\Descriptor\Descriptor' not found in D:\workspaces\liZiPingBack\vendor\symfony\form\Console\Descriptor\JsonDescriptor.php:22 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\form\Console\Descriptor\JsonDescriptor.php on line 22