Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\Storage\SessionStorageFactoryInterface" not found in C:\WebServer\htdocs\bookshelf\vendor\symfony\http-foundation\Session\Storage\MockFileSessionStorageFactory.php:22 Stack trace: #0 {main} thrown in C:\WebServer\htdocs\bookshelf\vendor\symfony\http-foundation\Session\Storage\MockFileSessionStorageFactory.php on line 22