Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\SHC\xampp\htdocs\shc_mobile_backend\packages\imapplib\src\IMAppLib\Unittest\Group\Membership\Resolver.php:10 Stack trace: #0 {main} thrown in C:\SHC\xampp\htdocs\shc_mobile_backend\packages\imapplib\src\IMAppLib\Unittest\Group\Membership\Resolver.php on line 10