Fatal error: Uncaught Error: Class 'PHPUnit\Runner\Version' not found in /opt/lampp/htdocs/123playnow-external/vendor/symfony/polyfill-util/TestListener.php:18 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/123playnow-external/vendor/symfony/polyfill-util/TestListener.php on line 18