Fatal error: Uncaught Error: Class "Doctrine\Common\Collections\ArrayCollection" not found in C:\xampp\htdocs\hannoole\PMS\vendor\phpro\grumphp\src\Collection\ParseErrorsCollection.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hannoole\PMS\vendor\phpro\grumphp\src\Collection\ParseErrorsCollection.php on line 12