Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /opt/lampp/htdocs/forum/flarum/vendor/nikic/fast-route/test/Dispatcher/DispatcherTest.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/nikic/fast-route/test/Dispatcher/DispatcherTest.php on line 7