Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/development/pixtask/vendor/nikic/fast-route/test/Dispatcher/DispatcherTest.php:8 Stack trace: #0 {main} thrown in /var/www/development/pixtask/vendor/nikic/fast-route/test/Dispatcher/DispatcherTest.php on line 8