我已按照文档http://book.cakephp.org/2.0/fr/core-libraries/helpers/rss.html但我无法正常工作我遇到以下错误
Missing Method in PostsController
Error: The action index.rss is not defined in controller PostsController
Error: Create PostsController::index.rss() in file: app\Controller\PostsController.php.