Fatal error: Interface 'Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface' not found in /var/www/html/dev/spa/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Flash/AutoExpireFlashBag.php on line 20

Call Stack:
    0.0006     256280   1. {main}() /var/www/html/dev/spa/vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Flash/AutoExpireFlashBag.php:0