Fatal error: Uncaught Error: Class 'Doctrine\Common\Collections\Expr\ExpressionVisitor' not found in /home/benjamincb/demos/acdg/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryExpressionVisitor.php:21 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg/vendor/doctrine/orm/lib/Doctrine/ORM/Query/QueryExpressionVisitor.php on line 21