Missing Method in CategoriasController

Error: The action index is not defined in controller CategoriasController

Error: Create CategoriasController::index() in file: app/controllers/categorias_controller.php.

<?php
class CategoriasController extends AppController {

	var $name = 'Categorias';


	function index() {

	}

}
?>

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