Fatal error: Uncaught Error: Class "Tests\TestCase" not found in /home/crmcodingobjects/public_html/modules/Users/Tests/Feature/UserInvitationControllerTest.php:21 Stack trace: #0 {main} thrown in /home/crmcodingobjects/public_html/modules/Users/Tests/Feature/UserInvitationControllerTest.php on line 21