Fatal error: Uncaught Error: Interface "Symfony\Component\Serializer\Normalizer\NormalizerInterface" not found in C:\xampp\htdocs\bilipoa\vendor\web-auth\webauthn-lib\src\Denormalizer\UrlNormalizer.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bilipoa\vendor\web-auth\webauthn-lib\src\Denormalizer\UrlNormalizer.php on line 19