Property Webauthn\MetadataService\Service\DistantResourceMetadataService::$serializer (Symfony\Component\Serializer\SerializerInterface|null) is never assigned null so it can be removed from the property type.

Property Webauthn\MetadataService\Service\FidoAllianceCompliantMetadataService::$serializer (Symfony\Component\Serializer\SerializerInterface|null) is never assigned null so it can be removed from the property type.

Property Webauthn\MetadataService\Service\FolderResourceMetadataService::$serializer (Symfony\Component\Serializer\SerializerInterface|null) is never assigned null so it can be removed from the property type.

Property Webauthn\MetadataService\Service\JsonMetadataService::$serializer (Symfony\Component\Serializer\SerializerInterface|null) is never assigned null so it can be removed from the property type.

Property Webauthn\MetadataService\Service\LocalResourceMetadataService::$serializer (Symfony\Component\Serializer\SerializerInterface|null) is never assigned null so it can be removed from the property type.

Process completed with exit code 2.