Fatal error: Uncaught Error: Class "Ramsey\Collection\AbstractSet" not found in C:\PHP\APPS\dev\aictec_license_web\vendor\ramsey\collection\src\Set.php:41 Stack trace: #0 {main} thrown in C:\PHP\APPS\dev\aictec_license_web\vendor\ramsey\collection\src\Set.php on line 41