Fatal error: Uncaught Error: Class 'Doctrine\Common\Collections\Expr\ExpressionVisitor' not found in C:\Apache24\htdocs\InvoiceTracking\vendor\doctrine\orm\lib\Doctrine\ORM\Persisters\SqlValueVisitor.php:32 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\InvoiceTracking\vendor\doctrine\orm\lib\Doctrine\ORM\Persisters\SqlValueVisitor.php on line 32