Fatal error: Uncaught Error: Class 'Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter' not found in D:\workspaces\liZiPingBack\vendor\sensio\framework-extra-bundle\src\Configuration\Entity.php:20 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\sensio\framework-extra-bundle\src\Configuration\Entity.php on line 20