Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Session\Session" not found in C:\Apache24_x64\htdocs\ipad\vendor\symfony\http-kernel\Tests\Fixtures\Controller\ExtendingSession.php:16 Stack trace: #0 {main} thrown in C:\Apache24_x64\htdocs\ipad\vendor\symfony\http-kernel\Tests\Fixtures\Controller\ExtendingSession.php on line 16