Missing Method in CategoriesController

Error: The action show is not defined in controller CategoriesController

Error: Create CategoriesController::show() in file: app/controllers/categories_controller.php.

<?php
class CategoriesController extends AppController {

	var $name = 'Categories';


	function show() {

	}

}
?>

Notice: If you want to customize this error message, create app/views/errors/missing_action.ctp