Fatal error: Uncaught Error: Class "Doctrine\Common\DataFixtures\AbstractFixture" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\doctrine\doctrine-fixtures-bundle\Fixture.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\doctrine\doctrine-fixtures-bundle\Fixture.php on line 13