Fatal error: Uncaught Error: Class "Github\Api\AbstractApi" not found in C:\xampp\htdocs\vendor\knplabs\github-api\lib\Github\Api\Organization\OutsideCollaborators.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\vendor\knplabs\github-api\lib\Github\Api\Organization\OutsideCollaborators.php on line 12