Confused at what to do. Default rails install by the RailsInstaller.
started a new demo app. Using rails 3.2.14.
created a controller
rails generate controller Say hello goodbye
However whenever I navigate to the localhost it returns an execjs error.
So for
http://localhost:3000/say/hello
I received
ExecJS::RuntimeError in Say#hello
Showing c:/work/demo/app/views/layouts/application.html.erb where line #6 raised:
(in c:/work/demo/app/assets/javascripts/say.js.coffee)
Extracted source (around line #6):
3: <head>
4: <title>Demo</title>
5: <%= stylesheet_link_tag "application", :media => "all" %>
6: <%= javascript_include_tag "application" %>
7: <%= csrf_meta_tags %>
8: </head>
9: <body>
Rails.root: c:/work/demo
I have tried searching for solutions but the only one I thought seemed applicable hasn't helped.
I added to my gemfile the below and did bundle update. No Success.
gem 'execjs'
gem 'therubyracer', :platforms => :ruby
What should I do?
EDIT
gemfile.lock http://pastebin.com/hGPJpxLp
Find ExecJS's runtimes.rb file.
bundle show execjs
Make a backup. Open the runtimes.rb and edit. Find the part that starts with the line JScript = ExternalRuntime.new(. On the line containing :command => "cscript //E:jscript //Nologo //U", - remove the //U only. Now in the line containing :encoding => 'UTF-16LE' # CScript with //U returns UTF-16LE - change UTF-16LE to UTF-8 . Save changes. Result should be like:
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
)
restart rails s, problem should be solved.
Use gem install node .
I don't know why this works but it works .
Make sure you have gem 'therubyracer' and gem 'execjs' under assets group then run bundle install , also you can try Node.js instead of execjs
I also had a problem, After the R&D I installed node.js (http://nodejs.org/download/) the problem become solved.
adding the gem gem 'execjs' did it for me.
Related
I have a sample slim document I am trying to run in my homepage rails app.
My application.html.slim file is as follows:
doctype html
html
head
title Tasks
= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" => true
= javascript_include_tag "application", "data-turbolinks-track" => true
= csrf_meta_tags
javascript:
alert('Welcome!')
body
= yield
I've added:
gem 'slim-rails'
to my Gemfile, and ran bundle install, and nothing. I've also added:
Slim::Engine.default_options[:pretty] = true
to my confif/environments/development.rb file...and nothing. I just get the output of my application.html.slim file.
I added:
gem 'slim' to my Gemfile, deleted Gemfile.lock, and ran bundle install again, and it worked. Not sure if 'slim-rails' is defunct, or if it requires the slim gem in order to work.
I'm working on a Rails 4 (using the release candidate) project and now need to collaborate with someone on a Windows machine. I can't even get a basic webpage to come up, however :(. It was quite a pain even installing sqlite3 using Ruby 2.0. Now, when I try to get a webpage up (I just created a dummy /home/index controller and view), I get this error:
Showing C:/Users/me/RubymineProjects/test_project/app/views/layouts/application.html.erb where line #6 raised:
(in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/turbolinks-1.1.1/lib/assets/javascripts/turbolinks.js.coffee)
Extracted source (around line #6):
3 <head>
4 <title>TestProject</title>
5 <%= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" => true %>
6 <%= javascript_include_tag "application", "data-turbolinks-track" => true %>
7 <%= csrf_meta_tags %>
8 </head>
9 <body>
Is Rails 4 just not ready for Windows yet? Using Ruby 2.0.0p195.
UPDATE: As per #szines request, here's the webpage output for
http://localhost:3000/rails/info/properties:
Ruby version 2.0.0 (x64-mingw32)
RubyGems version 2.0.3
Rack version 1.5
Rails version 4.0.0.rc1
JavaScript Runtime JScript
Active Record version 4.0.0.rc1
Action Pack version 4.0.0.rc1
Action Mailer version 4.0.0.rc1
Active Support version 4.0.0.rc1
Middleware
ActionDispatch::Static
Rack::Lock
#<ActiveSupport::Cache::Strategy::LocalCache::Middleware:0x000000036b85c0>
Rack::Runtime
Rack::MethodOverride
ActionDispatch::RequestId
Rails::Rack::Logger
ActionDispatch::ShowExceptions
ActionDispatch::DebugExceptions
ActionDispatch::RemoteIp
ActionDispatch::Reloader
ActionDispatch::Callbacks
ActiveRecord::Migration::CheckPending
ActiveRecord::ConnectionAdapters::ConnectionManagement
ActiveRecord::QueryCache
ActionDispatch::Cookies
ActionDispatch::Session::CookieStore
ActionDispatch::Flash
ActionDispatch::ParamsParser
Rack::Head
Rack::ConditionalGet
Rack::ETag
Warden::Manager
Application root C:/Users/me/RubymineProjects/test_project
Environment development
Database adapter sqlite3
Database schema version 20130523073322
<%= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" => true %>
Change this to :
<%= stylesheet_link_tag "defaults", media: "all", "data-turbolinks-track" => true %>
It should work.
It will be great if someone can provide explanation for this.
More info:
ExecJS::RuntimeError in Users#index (RoR)
ExecJS and could not find a JavaScript runtime
Just install node.js and the problem will gone.
Explanation:
If you'll try to precompile assets, you'll get the following trace:
(in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/turbolinks-1.3.0/lib/assets/javascripts/turbolinks.js.coffee)
C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:142:in `exec_runtime'
C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:28:in `block in exec'
C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/execjs-1.4.0/lib/execjs/external_runtime.rb:41:in `compile_to_tempfile'
...
As you can see, there is a problem with ExecJS. ExecJS lets you run JavaScript code from Ruby and it requires one of the JS interpreters to be installed on your system. Here's a list of supported interpreters. Usually, you can use therubyracer which is just V8 but there are problems with compiling V8 under the windows. So you can choose another option - NodeJS. ExecJS will use it automatically when you'll install NodeJS and add it to your PATH.
changing following line
<%= javascript_include_tag "application", "data-turbolinks-track" => true %>
to
<%= javascript_include_tag "defaults", "data-turbolinks-track" => true %>
works.
OR
you can install node.js
The actual solution for getting Turbolinks to work on Windows 8 x64 is posted at ExecJS::RuntimeError on Windows trying to follow rubytutorial, option 3.
I have been facing this problem for a while and it's that on windows jquery and coffee script are not functional in their latest update and finally i found this wonderful method that worked perfectly without the need to download node or escape //require tree. So all you need is configure the settings in your runtimes.rb which lives in execjs to be like this- you will find this part with few differences fix them and you'll be good to go.
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
You can watch this video for detailed solution.
https://www.youtube.com/watch?v=N5i94L17KPo
I just created an empty application and only generated a StaticPages controller with home, help, about, and contact options, but when I access localhost:3000/static_pages/home, I get an error:
ExecJS::RuntimeError in Static_pages#home
Showing [...]views/layouts/application.html.erb where line #6 raised:
(in [...]/app/assets/javascripts/static_pages.js.coffee) Extracted source (around line #6):
3: <head>
4: <title>TodolistApp</title>
5: <%= stylesheet_link_tag "application", :media => "all" %>
6: <%= javascript_include_tag "application" %>
7: <%= csrf_meta_tags %> 8: </head> 9: <body> Rails.root: [..]
Application Trace | Framework Trace | Full Trace app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb__694989846_43803828'
I've looked at a few stackoverflow articles on this same problem, and some recommended installing Node.js, which I have done, but it hasn't done anything. Just to be clear, I have not added any code to any of the static pages views, nor have I added any javascript anywhere.
Also, something interesting is that if I take out line 4 ( <%= javascript_include_tag "application" %>) there is no error. But I assume that if I take this out, the I can't add javascript.
I'd appreciate any help, thanks!
Try to use "gem 'therubyracer'" in your Gemfile, with installed "therubyracer_for_windows"
I did the following (windows 8 64x):
1. Download gem + dll from https://github.com/hiranpeiris/therubyracer_for_windows
2. install this gem (gem instal ...) and move dll-files to "ruby\bin"
3. restart server (rails s, optionally)
4. Then "bundle install" with "gem 'therubyracer'" in my Gemfile works well
Example:
"Using sqlite3 (1.3.7)
Using therubyracer (0.11.0beta1)
Using uglifier (1.3.0)
Using webrat (0.7.1)
Your bundle is complete! Use bundle show [gemname] to see where a bundled gem
is installed."
Add this to your gemfile
gem 'therubyracer', :platform => :ruby
gem 'execjs'
Try this,it might works for you. I got somewhat similar error,i resolved using this.
I've created a clean and simple Rails 3.1 application called demo1. It contains two controllers - hello and goodbye. I get the following error when I try to load http://localhost:3000/say/hello:
ActionView::Template::Error (
(in /home/me/dev/ruby/demo1/app/assets/javascripts/say.js.coffee)):
3: <head>
4: <title>Demo1</title>
5: <%= stylesheet_link_tag "application" %>
6: <%= javascript_include_tag "application" %>
7: <%= csrf_meta_tags %>
8: </head>
9: <body>
app/views/layouts/application.html.erb:6:in
`_app_views_layouts_application_html_erb___558576499_89622220'
The problematic line of application.html.erb is:
<%= javascript_include_tag "application" %>
When I created the application using Rails 3.0 this particular line was:
<%= javascript_include_tag :defaults %>
And this worked fine. In fact, when I change the application.html.erb to use :defaults everything works, but I want to use the new features of Rails 3.1.
I can't seem to turn up anything on Google around this, I guess because Rails 3.1 has just been released.
By the way, I'm following the first chapter in the Agile Web Development with Rails (4th edition) Updated for Rails 3.1 book.
Some environmental info that may help in answering this question:
$ cat /etc/issue
Ubuntu 10.04.2 LTS \n \l
$ ruby -v
ruby 1.9.2p290 (2011-07-09 revision 32553) [i686-linux]
$ rails -v
Rails 3.1.0
Contents of the say.js.coffee file:
# 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/
Ok, I've figured out what the issue was, and so I'll answer my own question.
The problem was the app/assets/javascripts/application.js file contained commented out code. However, one of the commented out lines was as follows:
//= require_tree .
When I delete this line everything works fine.
Hope this helps. If someone can provide some insight as to why the underscore was causing the issue that would be great.
I just ran into this issue when starting a new RoR 3.2.1 app. The problem is that you are missing a JS runtime, which is because the line
# gem 'therubyracer'
in your Gemfile has that # in front of it. God only knows why they ship Rails with that line commented, because any tutorial that uses generate scaffold or similar will result in the asset compilation process tripping up over the generated coffeescript file.
The solution is to uncomment that line. Installing another JS runtime may also solve the problem. See e.g. ExecJS and could not find a JavaScript runtime.
The official ruby on rails guide says:
Compiling CoffeeScript to JavaScript requires a JavaScript runtime and the absence of a runtime will give you an execjs error. Usually Mac OS X and Windows come with a JavaScript runtime installed. Rails adds the therubyracer gem to Gemfile in a commented line for new apps and you can uncomment if you need it. therubyrhino is the recommended runtime for JRuby users and is added by default to Gemfile in apps generated under JRuby. You can investigate about all the supported runtimes at ExecJS.
Simply delete the 2 lines from application.js
//= require turbolinks
//= require_tree
I had the same problem running rails 3.1.1
Once I reinstated the following code in my Gemfile, my issue disappeared:
group :assets do
gem 'sass-rails', '~> 3.1.4'
gem 'coffee-rails', '~> 3.1.1'
gem 'uglifier', '>= 1.0.3'
end
gem 'jquery-rails'
This was placed in my Gemfile when initially setting up the project, i.e. using "rails new myapp".
Note that the in my template file I include:
<%= javascript_include_tag :application %>
Hope that helps
If you're on Windows and you used RailsInstaller to get your development going, you need to use that .bat file included with RailsInstaller to run your server. Also you can't use any CMD hook like conemu to start the server, unfortunately.
For the benefit of future Googlers, I went down a rabbit hole trying to install therubyracer until I stumbled upon this related post:
ExecJS::RuntimeError in rails 3.2.8 engine with javascript_include_tag
The link mentioned explains that ExecJS is configured incorrectly for Windows 8 out-of-the-box. In particular, the workaround described by pottsk did the trick for me.
https://github.com/sstephenson/execjs/issues/81#issuecomment-9892952
It involves changing the way that the cscript executable is run by ExecJS in %rubyinstall%\gems\2.0.0\gems\execjs-2.0.1\lib\execjs\runtimes.rb:
# JScript = ExternalRuntime.new(
# :name => "JScript",
# :command => "cscript //E:jscript //Nologo //U",
# :runner_path => ExecJS.root + "/support/jscript_runner.js",
# :encoding => 'UTF-16LE' # CScript with //U returns UTF-16LE
# )
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
)
It goes without saying that this is not a permanent solution but it does get me up and running until the patch is incorporated.
Removing //= require_tree will just stop your javascript files from being loaded into rails. It will probably stop the error, but probably not what you'd like.
However, in my case, I had some .js.coffee files with incorrect indenting. Once I fixed this (by deleting them), it worked.
Another thing you can try which worked for me is to add the json (and perhaps also the yajl-ruby) gem to your Gemfile. I don't really understand why they weren't already installed before because:
rails depends on actionpack
which depends on sprockets
which depends on json and tilt
and tilt depends on yajl-ruby
Yet, somehow, it seems many of the dependent gems were not installed!?
In case of using linux(Ubuntu linux like mine), install javascript runtime. The best is issue the below command to install,
apt-get install nodejs
or else, for each and every new creation of rails project, add
gem 'therubyracer' to your gemfile and run bundle install
devise_scope :user do
get 'sign_out', :to => 'devise/sessions#destroy', :as => :destroy_user_session
end
If your routes.rb has this above line just delete it and run. This is what corrected my problem.
modify generator file (application.html.erb.tt) as the following:
<%= javascript_include_tag "application", "data-turbolinks-track" true %>
<%= javascript_include_tag :default, "data-turbolinks-track" true %>
Just REMOVE the following line (Line no. 6) from generator file (application.html.erb) :
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
please update me if there is any drawback to remove this line
Thanks
I have this issue in Rails 4, and if I switch it to 'defaults' rather than 'application', it works, just as the OP says. But this is in an external Gem that I'd rather not edit. I have found that if I force my Gemfile to use version 1.8.0 of coffee-script-source, do a bundle install, and start the server, then everything works fine.
Adding the gem 'therubyracer' fixed the issue.
I was getting the error only after adding external js file through <%= javascript_include_tag %>
So I just tried to install ckeditor in rails, however it doesn't look like its working.
Here is what I did
added these lines to my gemfile
gem "ckeditor", "~> 3.6.0"
gem "paperclip"
Then bundled installed and ran
rails generate ckeditor:install
rails generate ckeditor:models --orm=active_record
Added this file tom config/application.rb
config.autoload_paths += %W(#{config.root}/app/models/ckeditor)
And then I tried out this code:
<%= javascript_include_tag :ckeditor %>
cktext_area_tag("test_area", "Ckeditor is the best")
cktext_area_tag("content", "Ckeditor", :input_html => {:cols => 10, :rows => 20}, :toolbar => 'Easy')
However, all I am getting is two textareas that do not have any editing ability. They look like normal textareas and all I can do is erase and add text.
What am I doing wrong?
This works like a charm, just tested it on rails 3.1.rc6. Also be cautious of the gem you are using. As of the moment of this post, the oficial gem was not working and was waiting for a pull request, so be sure to use fxposter's version of the gem in your gemfile.
https://github.com/fxposter/rails_3_1_with_ckeditor_and_carrierwave
I had the same setup as you and the same issue. With jalagrange's example app as a comparison to mine, I eventually found the issue to be in development.rb. I had to remove this line:
config.assets.debug = true
It worked for me with after that.
I had a similar issue when I was setting it up a while ago. I gave up on the gem eventually. The problem was getting ckeditor to behave in the asset pipeline, but I had mixed results depending on the browser (of course IE was the problem). Here is what worked for me:
Download ckeditor package from their site and drop in to public/ckeditor.
Then, directly include the javascript files.
<%= javascript_include_tag "/ckeditor/ckeditor" %>
<%= javascript_include_tag "/ckeditor/adapters/jquery" %>
Not exactly elegant, but it worked and haven't had to touch it since.
STEP 1: Add gem 'paperclip' and gem "ckeditor" in your gemfile.
STEP 2: Bundle Install.
STEP 3: rails generate ckeditor:install --orm=active_record --backend=paperclip
STEP 4: Place config.autoload_paths += %W(#{config.root}/app/models/ckeditor) in application.rb
STEP 5: Place mount Ckeditor::Engine => "/ckeditor" if not present already and run db:migrate
STEP 6: Open application.html.erb and place this <%= javascript_include_tag 'ckeditor/ckeditor.js' %> in header.
STEP 7: Place this in footer(above the body tag) in application.html.erb
<script type="text/javascript">$(document).ready(function() {
if ($('textarea').length > 0) {
var data = $('textarea');
$.each(data, function(i) {
CKEDITOR.replace(data[i].id);
});
}
});</script>
STEP 8: Restart the WEBrick SERVER.
That's it.