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POExecJS::RuntimeError on Windows trying to follow rubytutorial
 

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  1. POExecJS::RuntimeError on Windows trying to follow rubytutorial
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    <p><strong>UPDATE:</strong> <a href="https://stackoverflow.com/users/1017768/colin-r">Colin</a>'s suggestion of removing the line //= require_tree . has fixed the issue.</p> <p>I have wasted over 2 days trying to follow every suggestion out there and fix my issue. I am trying to follow the <a href="http://ruby.railstutorial.org" rel="noreferrer">http://ruby.railstutorial.org</a> book on windows machine and cannot for the life of me get past the following nasty error.</p> <pre><code>ExecJS::RuntimeError in Static_pages#home Showing C:/Users/.../bootcamp-sample-app/app/views/layouts/application.html.erb where line #6 raised: ["ok","(function() {\n\n\n\n}).call(this);\n"] (in C:/Users/.../bootcamp-sample-app/app/assets/javascripts/sessions.js.coffee) Extracted source (around line #6): 3: &lt;head&gt; 4: &lt;title&gt;&lt;%= full_title(yield(:title)) %&gt;&lt;/title&gt; 5: &lt;%= stylesheet_link_tag "application", media: "all" %&gt; 6: &lt;%= javascript_include_tag "application" %&gt; 7: &lt;%= csrf_meta_tags %&gt; 8: &lt;%= render 'layouts/shim' %&gt; 9: &lt;/head&gt; Rails.root: C:/Users/.../bootcamp-sample-app Application Trace | Framework Trace | Full Trace app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb___487732698_30422172' Request </code></pre> <p>I have tried every suggestion including installing nodejs with the msi, using execjs 1.3.0 and other things which I can't even remember any more. Here is the <strong>gem file</strong> </p> <pre><code>source 'https://rubygems.org' gem 'rails', '3.2.8' gem 'bootstrap-sass', '2.0.0' gem 'bcrypt-ruby', '3.0.1' gem 'faker', '1.0.1' gem 'will_paginate', '3.0.3' gem 'bootstrap-will_paginate', '0.0.6' group :development, :test do gem 'sqlite3', '1.3.5' gem 'rspec-rails', '2.10.0' gem 'guard-rspec', '0.5.5' gem 'guard-cucumber' end group :development do gem 'annotate', '2.5.0' end # Gems used only for assets and not required # in production environments by default. group :assets do gem 'sass-rails' gem 'coffee-rails' gem 'coffee-script' gem 'uglifier' end gem 'jquery-rails', '2.0.2' gem 'execjs' # Gems on Linus/Mac #gem 'therubyracer' group :test do gem 'capybara', '1.1.2' gem 'guard-spork', '0.3.2' gem 'spork', '0.9.0' gem 'factory_girl_rails', '1.4.0' gem 'cucumber-rails', '1.2.1', require: false gem 'database_cleaner', '0.7.0' # Test gems on Linux # gem 'rb-inotify', '0.8.8' # gem 'libnotify', '0.5.9' # Test gems on Macintosh OS X # gem 'selenium-webdriver', '~&gt; 2.22.0' # gem 'rb-fsevent', '0.9.1', :require =&gt; false # gem 'growl', '1.0.3' # Test gems on Windows # gem 'rb-fchange', '0.0.5' # gem 'rb-notifu', '0.0.4' # gem 'win32console', '1.3.0' end group :production do # gem 'therubyracer' gem 'pg', '0.12.2' end # To use ActiveModel has_secure_password # gem 'bcrypt-ruby', '~&gt; 3.0.0' # To use Jbuilder templates for JSON # gem 'jbuilder' # Use unicorn as the app server # gem 'unicorn' # Deploy with Capistrano # gem 'capistrano' # To use debugger #gem 'debugger'' </code></pre> <p>and here is the <strong>sessions.js.coffee</strong></p> <pre><code># Place all the behaviors and hooks related to the matching controller here. # All this logic will automatically be available in application.js. # You can use CoffeeScript in this file: http://jashkenas.github.com/coffee-script/ </code></pre> <p><strong>application.js</strong></p> <pre><code>// This is a manifest file that'll be compiled into application.js, which will include all the files // listed below. // // Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts, // or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path. // // It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the // the compiled file. // // WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD // GO AFTER THE REQUIRES BELOW. // //= require jquery //= require jquery_ujs //= require_tree . //= require bootstrap </code></pre> <p><strong>application.html.erb</strong></p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;title&gt;&lt;%= full_title(yield(:title)) %&gt;&lt;/title&gt; &lt;%= stylesheet_link_tag "application", media: "all" %&gt; &lt;%= javascript_include_tag "application" %&gt; &lt;%= csrf_meta_tags %&gt; &lt;%= render 'layouts/shim' %&gt; &lt;/head&gt; &lt;body&gt; &lt;%= render 'layouts/header' %&gt; &lt;div class="container"&gt; &lt;%= yield %&gt; &lt;%= render 'layouts/footer' %&gt; &lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>Here is <strong>console content</strong></p> <pre><code>Processing by StaticPagesController#home as HTML Rendered static_pages/home.html.erb within layouts/application (45.0ms) Completed 500 Internal Server Error in 1136ms ActionView::Template::Error (["ok","(function() {\n\n\n\n}).call(this);\n"] (in C:/Users/.../bootcamp-sample-app/app/assets/javascripts/sessions.js.coffee)): 3: &lt;head&gt; 4: &lt;title&gt;&lt;%= full_title(yield(:title)) %&gt;&lt;/title&gt; 5: &lt;%= stylesheet_link_tag "application", media: "all" %&gt; 6: &lt;%= javascript_include_tag "application" %&gt; 7: &lt;%= csrf_meta_tags %&gt; 8: &lt;%= render 'layouts/shim' %&gt; 9: &lt;/head&gt; app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb___487732698_30422172' Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/_trace.erb (2.0ms) Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.0ms) Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.8/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (34.0ms) </code></pre> <p>I have installed Devkit and have tried various gems but please suggest changes which can help me develop on windows. I used rubyinstaller for everything.</p> <p>What am I missing?</p>
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    1. COCould you try removing the line `//= require_tree .` from `application.js` and see if the error persists?
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    2. COWOW.... that did the trick... thanks a lot Colin, removing the line //= require_tree . has fixed the issue. I can't explain what a relief that is but can u plz explain why that line is causing the error?
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    3. COThat 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.
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