Fatal error: Uncaught Error: Interface 'Symfony\Component\Serializer\Normalizer\NormalizerInterface' not found in /home/itscm/dev.its.cm/webservices/vendor/api-platform/core/src/Hydra/Serializer/DocumentationNormalizer.php:40 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webservices/vendor/api-platform/core/src/Hydra/Serializer/DocumentationNormalizer.php on line 40