Fatal error: Uncaught Error: Class 'JMS\Serializer\Metadata\ClassMetadata' not found in /home/lafaamicps/www/symfony/vendor/jms/serializer/tests/JMS/Serializer/Tests/Metadata/Driver/php/AuthorReadOnly.php:5 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/jms/serializer/tests/JMS/Serializer/Tests/Metadata/Driver/php/AuthorReadOnly.php on line 5