Redirect not working #54

$app = new \Slim\App();
$app->get('/', function ($request, $response, $args) {
return $response->withRedirect($this->router->pathFor('name'));//not work
});

$app->get('/auth/signup', function ($request, $response, $args) {
return 'Hello';
})->setName('name');

$app -> run();

$app->get('/', function ($req, $res, $args) {
  return $res->withStatus(302)->withHeader('Location', '/auth/signup'); //Not work
});