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

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

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

Answer 3

If you do not use layouts, put "layout false" in the controller file, just below class title:

class ABCController < ApplicationController "layout false" def index ... ..

Answer 4

I had this issue too, checkout the extensive solution on this thread, ExecJS::RuntimeError on Windows trying to follow rubytutorial by @Kevin P. Also,the solution by, @evedoevelli, on another thread: Rails ExecJS::ProgramError in Pages#home? works. I used the second solution with it been the most recent date-wise.

Answer 5

I removed the require_tree from application.js and it worked

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

Answer 6

The reason is because NodeJS is not installed. If you install it, the problem should go away.

However, this would work as well in application.js:

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

But this is just not the prefered method because all this does is disable rails functionality. For example, ActionCable will not work with this change.