Fatal error: Uncaught Error: Class 'Drupal\serialization\Normalizer\NormalizerBase' not found in /var/www/html/tmp/contrib/rest_views/src/Normalizer/DataNormalizer.php:13 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/rest_views/src/Normalizer/DataNormalizer.php on line 13