Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Session\Storage\Handler\AbstractSessionHandler" not found in D:\Apache24\www\gs1_taizhou\back\vendor\symfony\http-foundation\Session\Storage\Handler\PdoSessionHandler.php:44 Stack trace: #0 {main} thrown in D:\Apache24\www\gs1_taizhou\back\vendor\symfony\http-foundation\Session\Storage\Handler\PdoSessionHandler.php on line 44