Fatal error: Uncaught Error: Class "Symfony\Bundle\FrameworkBundle\Command\ContainerAwareCommand" not found in C:\xampp\htdocs\electronica\vendor\jms\security-extra-bundle\JMS\SecurityExtraBundle\Command\InitSecureRandomCommand.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\electronica\vendor\jms\security-extra-bundle\JMS\SecurityExtraBundle\Command\InitSecureRandomCommand.php on line 18