Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /opt/lampp/htdocs/msjguidelines/vendor/orangehill/iseed/tests/IseedTest.php:8 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msjguidelines/vendor/orangehill/iseed/tests/IseedTest.php on line 8