ExecJS::RuntimeError [Rails 4] Node.js already installed

Question

I have an ExecJS::RuntimeError on my Rails 4 app. I'm on Windows 7 64bit. I have already checked these two answers :

and ExecJS::RuntimeError on Windows trying to follow rubytutorial

Then, I tried :

Install node.js, restard my computer, but still doesn't work !!

OR

Modify C:\RailsInstaller\Ruby2.0.0\lib\ruby\gems\2.0.0\gems\execjs-2.0.2\lib\execjs\runtimes.rb by changing.

 JScript = ExternalRuntime.new(
          :name        => "JScript",
          :command     => "cscript //E:jscript //Nologo",
          :runner_path => ExecJS.root + "/support/jscript_runner.js",
          :encoding    => 'UTF-8' # CScript with //U returns UTF-16LE
        )

by

JScript = ExternalRuntime.new(
      :name        => "JScript",
      :command     => "cscript //E:jscript //Nologo",
      :runner_path => ExecJS.root + "/support/jscript_runner.js",
      :encoding    => 'UTF-8' # CScript with //U returns UTF-16LE
    )

But it does not work neither !

I know that remove the line //= require_tree . of application.js works but I don't want a bad fix.

What should I do ?

I precise that ALL my js files (except application.js) are empty.

My gemfile :

 ruby '2.0.0'
#ruby-gemset=railstutorial_rails_4_0

gem 'rails', '4.0.2'
gem 'bootstrap-sass', '~> 3.0.3.0'
gem 'bcrypt-ruby', '3.1.2'

group :development, :test do
  gem 'sqlite3', '1.3.8'
  gem 'rspec-rails', '2.13.1'
  #advanced stuff
  gem 'guard-rspec', '2.5.0'
  gem 'spork-rails', '4.0.0'
  gem 'guard-spork', '1.5.0'
  gem 'childprocess', '0.4.0'
end

group :test do
  gem 'selenium-webdriver', '2.35.1'
  gem 'capybara', '2.1.0'
  gem 'rb-notifu', '0.0.4'
  gem 'factory_girl_rails', '4.2.1'
end

gem 'sass-rails', '4.0.1'
gem 'uglifier', '2.1.1'
gem 'coffee-rails', '4.0.1'
gem 'jquery-rails', '3.0.4'
gem 'turbolinks', '1.1.1'
gem 'jbuilder', '1.0.2'
gem 'execjs'

group :doc do
  gem 'sdoc', '0.3.20', require: false
end

group :production do
  gem 'pg', '0.15.1'
  gem 'rails_12factor', '0.0.2'
end

score 1 · Answer 1 · answered Feb 02 '14 at 10:36

Based on this link: https://stackoverflow.com/questions/12520456/execjsruntimeerror-on-windows-trying-to-follow-rubytutorial I think you should try to see which .js file generates the error.

That line is compiling every .js.coffee file in app/assets/javascripts into JavaScript and then adding it to your layout (but only in development mode; in production mode, the compiled js is added to your application.js file). Having require_tree . shouldn't be causing errors, so somehow you've got an issue with one of the files that's being included. Can you post a list of all the files in your app/assets/javascripts directory? Also, you can try completely deleting the contents of sessions.js.coffee and adding back //= require_tree . and see if the error still exists.

score 0 · Answer 2 · answered Feb 03 '14 at 14:23

0

try this out:-

   add gem therubyracer to your gemfile and then do bundle install

answered Feb 03 '14 at 14:23

Sachin Singh

7,107
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open windows command prompt `cmd` and type `node`, are you able to run nodejs terminal? – Sachin Singh Feb 04 '14 at 07:11
I've added my gemfile, yeah I can run nodejs terminal – Léo Feb 04 '14 at 07:59
your gemfile does not contains the therubyracer gem, please add it and then do bundle, and try running the server again – Sachin Singh Feb 04 '14 at 09:29
hey, does your gemfile contains `therubyracer` gem, if not add it. – Sachin Singh Feb 04 '14 at 09:30
The rubyracer is already installed on my computer, when I type `gem list`, it is in the list – Léo Feb 04 '14 at 09:54
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/46735/discussion-between-sachin-singh-and-duques-l) – Sachin Singh Feb 04 '14 at 10:23

score 0 · Answer 3 · answered Feb 04 '14 at 09:42

0

Window already has ExecRuntime engine installed and it does not need anything to done. It should automatically pickup best runtime available. You does not even need to install nodejs.

answered Feb 04 '14 at 09:42

Sanjiv

813
6
13

score 0 · Answer 4 · answered Feb 07 '14 at 07:03

0

I would not spend the effort trying to patch for Windows. I recommend installing 'therubyracer' gem [V8 embedded] or node.js. If the issue persists; please provide a copy of your Gemfile.lock so we can verify your bundle install.

answered Feb 07 '14 at 07:03

dans3itz

1,605
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I already installed therubyracer gem by using https://github.com/hiranpeiris/therubyracer_for_windows – Léo Feb 08 '14 at 21:23

score 0 · Answer 5 · answered Apr 29 '14 at 00:59

0

Change the ExecJS version to 1.2.4

Go to the Gemfile
Type gem 'execjs', '1.2.4'
Go to the command line in the application: bundle install
Prosper

answered Apr 29 '14 at 00:59

belozi

1
1

score 0 · Answer 6 · answered Nov 02 '14 at 08:55

0

Please never develop Rails project in special folder such as Google Drive Syns. This might help you. The full detail is here: http://www.angkorbrick.com/rails-should-not-put-project-repository-in-google-drive-syns-folder/

answered Nov 02 '14 at 08:55

Kuroun

87
1
8

score -1 · Accepted Answer · answered Mar 21 '14 at 22:04

-1

I "resolved" the problem, I formated my laptop and installed Windows 7 Ultimate...

answered Mar 21 '14 at 22:04

Léo

792
1
7
27

ExecJS::RuntimeError [Rails 4] Node.js already installed

7 Answers7