TypeError: Object doesn't support this property or method

Question

I have created rails application where I created a database (empty). When I try to view my products page, I receive the following error on my http://localhost:3000/products page. Before migrating the database, the application did function. I am using therubyracer and am on Windows 7.

ExecJS::ProgramError in Products#index
Showing C:/RailsInstaller/DevKit/home/JP/nameofapp/app/views/layouts/application.html.erb where line #16 raised:

TypeError: Object doesn't support this property or method
  (in C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/turbolinks-2.5.3/lib/assets/javascripts/turbolinks.js.coffee)
Extracted source (around line #16):

13     <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
14     
15     <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track' => true %>
16     <%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
17     <%= csrf_meta_tags %>
18     
19   </head>

Rails.root: C:/RailsInstaller/DevKit/home/JP/nameofapp

This is what I got on the Rails server:

Started GET "/products" for 127.0.0.1 at 2015-04-23 22:28:06 -0400
  ActiveRecord::SchemaMigration Load (0.0ms)  SELECT "schema_migrations".* FROM
"schema_migrations"
Processing by ProductsController#index as HTML
  Product Load (0.0ms)  SELECT "products".* FROM "products"
  Rendered products/index.html.erb within layouts/application (4.0ms)
Completed 500 Internal Server Error in 3391ms

ActionView::Template::Error (TypeError: Object doesn't support this property or
method
  (in C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/turbolinks-2.5.3/lib/
assets/javascripts/turbolinks.js.coffee)):
    13:   <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.mi
n.js"></script>
    14:
    15:   <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolin
ks-track' => true %>
    16:   <%= javascript_include_tag 'application', 'data-turbolinks-track' => t
rue %>
    17:   <%= csrf_meta_tags %>
    18:
    19: </head>
  app/views/layouts/application.html.erb:16:in `_app_views_layouts_application_h
tml_erb__912949727_56715336'


  Rendered C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/actionpack-4.1.8
/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (1.0ms)
  Rendered C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/actionpack-4.1.8
/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb
 (6.0ms)
  Rendered C:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/actionpack-4.1.8
/lib/action_dispatch/middleware/templates/rescues/template_error.html.erb within
 rescues/layout (27.0ms)

Thank you for any help.

Answer 1

The error occurs because there is some problem finding the correct assets which are located in app/assets. To resolve the issue, you can following below steps.

Add gem 'coffee-script-source', '1.8.0' into Gemfile and run bundle install then Run bundle update coffee-script-source Restart rails server Or there is a dirty workaround which is to change the code from

<%= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" => true %>
<%= javascript_include_tag "application", "data-turbolinks-track" => true %>
<%= csrf_meta_tags %>

to

<%= stylesheet_link_tag "default", media: "all", "data-turbolinks-track" => true %>
<%= javascript_include_tag "default", "data-turbolinks-track" => true %>
<%= csrf_meta_tags %>

But note this workaround doesn't really resolve the application issue, it just makes your application works without expected stylesheets and javascripts.

Answer 2

I removed the require_tree from application.js and it worked

//= require jquery 
//= require jquery_ujs 
//= require turbolinks 
// require_tree .

Answer 3

I think Best Solution is Removing the slashes in application.js file like

= require jquery
= require jquery_ujs
= require turbolinks
= require_tree .