Backbone.js 木偶：未捕获的引用错误

我正在研究以木偶网和Rails作为后端的主干网，使用screencast，我遇到了这个错误：

Uncaught ReferenceError: FooterApp is not defined 

我的app.js.coffee代码：

@Demo = do (Backbone, Marionette) ->

    App = new Backbone.Marionette.Application

    App.addRegions
        headerRegion: "#header-region"
        mainRegion: "#main-region"
        footerRegion: "#footer-region"

    App.addInitializer ->
        App.module("FooterApp").start()
        #App.execute "footer:show"

    App.on "initialize:after", ->
        if Backbone.history
            Backbone.history.start()

    App

footer\u app.js.coffee

@Demo.module "FooterApp", (FooterApp, App, Backbone, Marionette, $, _) ->
  @startWithParent = false

    API = 
        showFooter: ->
            FooterApp.Show.Controller.showFooter()

    FooterApp.on "start", ->
        API.showFooter()

@Demo.module "FooterApp.Show", (Show, App, Backbone, Marionette, $, _) ->

    Show.Controller = 

        showFooter: ->
            console.log 'test'

和show_controller.js.coffee

@Demo.module "FooterApp", (FooterApp, App, Backbone, Marionette, $, _) ->
  @startWithParent = false

    API = 
        showFooter: ->
            FooterApp.Show.Controller.showFooter()

    FooterApp.on "start", ->
        API.showFooter()

@Demo.module "FooterApp.Show", (Show, App, Backbone, Marionette, $, _) ->

    Show.Controller = 

        showFooter: ->
            console.log 'test'

---

我花了很多时间找出了错误，但仍然没有任何线索。

在您的代码中，您在任何时候都没有初始化控制器，它应该读得更像这样

API = 
    showFooter: ->
        new FooterApp.Show.Controller

然后在页脚控制器中可以有一个初始化函数来显示它

initialize: ->
    console.log 'test'