Missing Method in SiteController

Error: The action {{produto.img}} is not defined in controller SiteController

Error: Create SiteController::{{produto.img}}() in file: app/controllers/site_controller.php.

<?php
class SiteController extends AppController {

	var $name = 'Site';


	function {{produto.img}}() {

	}

}
?>

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