Fatal error: Uncaught Error: Class 'Doctrine\ORM\Exception\ORMException' not found in /home/thomaeo/www/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/MappingException.php:21 Stack trace: #0 {main} thrown in /home/thomaeo/www/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/MappingException.php on line 21