Fatal error: Uncaught Error: Class 'Symfony\Component\Serializer\Normalizer\AbstractObjectNormalizer' not found in C:\SistemasPHP\observatorio4\vendor\symfony\serializer\Normalizer\ObjectNormalizer.php:29
Stack trace:
#0 {main}
thrown in C:\SistemasPHP\observatorio4\vendor\symfony\serializer\Normalizer\ObjectNormalizer.php on line 29