Fatal error: Uncaught Error: Class 'Doctrine\Common\EventArgs' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\doctrine\orm\lib\Doctrine\ORM\Event\OnFlushEventArgs.php:34 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\doctrine\orm\lib\Doctrine\ORM\Event\OnFlushEventArgs.php on line 34