marionette Cannot read property 'radio' of undefined

[workmaster2n]

Gemfile:

source 'https://rails-assets.org' do
  gem 'rails-assets-marionette'
end

application.js:

//= require jquery
//= require jquery_ujs
//= require bootstrap-sprockets
//= require openlayers-rails
//= require equalize.min
//= require jquery.mmenu.min.all
//= require private_pub
//= require lodash
//= require backbone
//= require marionette
//= require arsite_web
//= require scripts
//= require_tree ../templates
//= require_tree ./models
//= require_tree ./collections
//= require_tree ./views
//= require_tree ./routers
//= require resources

my_app.js.coffee

@App = do(Backbone, Marionette) ->
  Arc = new Marionette.Application
  Arc.on "initialize:after", ->
    new @Routers.MyRouter()
    if Backbone.history
      Backbone.history.start(pushState: true)
  Arc

console.log @App

Output:
Uncaught TypeError: Cannot read property 'radio' of undefined in Backbone.Marionette

If I download the marionette.js file separately and place it in vendor/assets/javascript, I do not have any issue with the code.

[sheerun]

What is the stack trace?

[workmaster2n]

@sheerun:

Uncaught TypeError: Cannot read property 'radio' of undefinedbackbone.marionette-4ff9c0af35778e5d75d925c2ec20a32f.js?body=1:2681 
_.extend._initChannelbackbone.marionette-4ff9c0af35778e5d75d925c2ec20a32f.js?body=1:2548
Marionette.Applicationapp-2f9bd32802efa72485192d741e710830.js?body=1:4 
(anonymous function)app-2f9bd32802efa72485192d741e710830.js?body=1:15 
(anonymous function)app-2f9bd32802efa72485192d741e710830.js?body=1:19 
(anonymous function)

The line in question is:
this.channel = _.result(this, 'channel') || Backbone.Wreqr.radio.channel(this.channelName);

Line number 2681 in backbone.marionette.js.

[sheerun]

I have no idea why it happens. Any guesses? What Rails Assets does wrong?

[workmaster2n]

I noticed that backbone.wreqr is a separate file, so perhaps it is getting included in the wrong place?

[workmaster2n]

Here's a project showing the issue: https://github.com/workmaster2n/marionette_bower_issue

[sheerun]

This project doesn't use rails-assets at all. Did you forget to push something?

[workmaster2n]

I must have missed a commit. Updated the project.

[sheerun]

Rails Assets doesn't automatically require dependencies. It only installs them automatically.

You need to manually include all marionette dependencies like so:

//= require underscore
//= require backbone
//= require backbone.babysitter
//= require backbone.wreqr
//= require marionette
//= require backbone/app

[workmaster2n]

Awesome! Thanks for finding that. I assumed Bower pulled in a different file from Marionette.