Fatal error: Uncaught Error: Class "Symfony\Component\Console\Descriptor\Descriptor" not found in I:\www\pvcTestingUtils\vendor\symfony\console\Descriptor\ReStructuredTextDescriptor.php:23 Stack trace: #0 {main} thrown in I:\www\pvcTestingUtils\vendor\symfony\console\Descriptor\ReStructuredTextDescriptor.php on line 23