Fatal error: Uncaught Error: Class "ApiPlatform\Core\Serializer\AbstractItemNormalizer" not found in C:\xampp\htdocs\BK\bateriasec\vendor\api-platform\core\src\Serializer\ItemNormalizer.php:36 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BK\bateriasec\vendor\api-platform\core\src\Serializer\ItemNormalizer.php on line 36