Fatal error: Uncaught Error: Class "Zend_Mail_Transport_Abstract" not found in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\diablomedia\zendframework1-application\tests\Zend\Application\Resource\mailTestCAsE.php:6 Stack trace: #0 {main} thrown in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\diablomedia\zendframework1-application\tests\Zend\Application\Resource\mailTestCAsE.php on line 6