Fatal error: Uncaught Error: Class "Symfony\Bundle\FrameworkBundle\Console\Descriptor\Descriptor" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\framework-bundle\Console\Descriptor\XmlDescriptor.php:34 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\framework-bundle\Console\Descriptor\XmlDescriptor.php on line 34