Fatal error: Uncaught Error: Class "JMS\Serializer\Annotation\XmlCollection" not found in C:\xampp\htdocs\bateriasec\vendor\jms\serializer\src\Annotation\XmlMap.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\bateriasec\vendor\jms\serializer\src\Annotation\XmlMap.php on line 12