 				else if key.match /frontend/i
 					@configureFrontEndFramework app, true
 
+	###
+	display help
+	###
+	listHelp: =>
+		ui.notice 'Invalid command.'
+		ui.notice 'load help'
+
 # export marie module
 module.exports = Marie

	###
	Configure system run app method.
	@param [String] cmd command sart/stop/restart
	###
	_run: (cmd, arg) ->


	###
	Configure add module method
	@param [String] arg 
	@param [String] pkg module to remove
	@param [String] opt
	@example `marie dc-web add module bower`
	###
	addModule: (arg, pkg, opt) =>
