Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\PHP\APPS\production\aictec_license_web\vendor\lcobucci\jwt\test\functional\HmacTokenTest.php:21 Stack trace: #0 {main} thrown in C:\PHP\APPS\production\aictec_license_web\vendor\lcobucci\jwt\test\functional\HmacTokenTest.php on line 21