Fatal error: Uncaught Error: Class "Sensio\Bundle\FrameworkExtraBundle\Configuration\ConfigurationAnnotation" not found in C:\xampp\htdocs\electronica\vendor\sensio\framework-extra-bundle\Configuration\Template.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\electronica\vendor\sensio\framework-extra-bundle\Configuration\Template.php on line 22