Fatal error: Class 'Doctrine\Common\EventArgs' not found in /var/www/html/dev/spa/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Event/LoadClassMetadataEventArgs.php on line 33

Call Stack:
    0.0003     236920   1. {main}() /var/www/html/dev/spa/vendor/doctrine/common/lib/Doctrine/Common/Persistence/Event/LoadClassMetadataEventArgs.php:0