Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Session\Session" not found in D:\Application\www\E-Tracking\vendor\symfony\http-kernel\Tests\Fixtures\Controller\ExtendingSession.php:16 Stack trace: #0 {main} thrown in D:\Application\www\E-Tracking\vendor\symfony\http-kernel\Tests\Fixtures\Controller\ExtendingSession.php on line 16