Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in E:\xampp\htdocs\api.astka\vendor\nikic\fast-route\test\Dispatcher\DispatcherTest.php:8 Stack trace: #0 {main} thrown in E:\xampp\htdocs\api.astka\vendor\nikic\fast-route\test\Dispatcher\DispatcherTest.php on line 8