Fatal error: Uncaught Error: Interface 'Symfony\Component\Serializer\Normalizer\NormalizerInterface' not found in D:\workspaces\liZiPingBack\vendor\symfony\serializer\Normalizer\CustomNormalizer.php:20 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\symfony\serializer\Normalizer\CustomNormalizer.php on line 20