Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /opt/lampp/htdocs/msjavgproperties/vendor/maennchen/zipstream-php/test/TimeTest.php:12 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msjavgproperties/vendor/maennchen/zipstream-php/test/TimeTest.php on line 12