Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\Xampp\www\0050467\ims-mobile\vendor_\hanneskod\classtools\tests\IntegrationTest.php:5 Stack trace: #0 {main} thrown in C:\Xampp\www\0050467\ims-mobile\vendor_\hanneskod\classtools\tests\IntegrationTest.php on line 5