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I installed ruby 2.1.0 and rails 4.0.4. I created an application. When I started 'rails server', I got following errors:
/home/chandra/.rvm/gems/ruby-2.1.0/gems/execjs-2.0.2/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/execjs-2.0.2/lib/execjs.rb:5:in `<module:ExecJS>'
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/execjs-2.0.2/lib/execjs.rb:4:in `<top (required)>'
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/uglifier-2.5.0/lib/uglifier.rb:3:in `require'
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/uglifier-2.5.0/lib/uglifier.rb:3:in `<top (required)>'
from /home/chandra/.rvm/gems/ruby-2.1.0#global/gems/bundler-1.6.1/lib/bundler/runtime.rb:76:in `require'
from /home/chandra/.rvm/gems/ruby-2.1.0#global/gems/bundler-1.6.1/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from /home/chandra/.rvm/gems/ruby-2.1.0#global/gems/bundler-1.6.1/lib/bundler/runtime.rb:72:in `each'
from /home/chandra/.rvm/gems/ruby-2.1.0#global/gems/bundler-1.6.1/lib/bundler/runtime.rb:72:in `block in require'
from /home/chandra/.rvm/gems/ruby-2.1.0#global/gems/bundler-1.6.1/lib/bundler/runtime.rb:61:in `each'
from /home/chandra/.rvm/gems/ruby-2.1.0#global/gems/bundler-1.6.1/lib/bundler/runtime.rb:61:in `require'
from /home/chandra/.rvm/gems/ruby-2.1.0#global/gems/bundler-1.6.1/lib/bundler.rb:132:in `require'
from /home/chandra/Desktop/webApplication/assignment1/blog/config/application.rb:7:in `<top (required)>'
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/railties-4.0.4/lib/rails/commands.rb:74:in `require'
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/railties-4.0.4/lib/rails/commands.rb:74:in `block in <top (required)>'
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/railties-4.0.4/lib/rails/commands.rb:71:in `tap'
from /home/chandra/.rvm/gems/ruby-2.1.0/gems/railties-4.0.4/lib/rails/commands.rb:71:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
Any suggestion? Thanks.
As the first line says: You need to install a JavaScript runtime library. And you will find further information at the given url: https://github.com/sstephenson/execjs
Install a javascript runtime like node js
if you are using ubuntu then follow the steps to get it install
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update
sudo apt-get install nodejs
Have you tried to put gem 'therubyracer' in your gemfile?
Related
I´ve a problem when run Rails server. I just installed gem server, but still not working. I am new to the world of programming . I am grateful to anyone who can help me.
Copy an image of the error: http://i.stack.imgur.com/wS7oS.png.
/home/hugo/.rvm/gems/ruby-2.2.2/gems/activesupport-4.0.5/lib/active_support/values/time_zone.rb:283: warning: circular argument reference - now
/home/hugo/.rvm/gems/ruby-2.2.2/gems/execjs-2.5.2/lib/execjs/runtimes.rb:48:in `autodetect': Could not find a JavaScript runtime. See https://github.com/rails/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/execjs-2.5.2/lib/execjs.rb:5:in `<module:ExecJS>'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/execjs-2.5.2/lib/execjs.rb:4:in `<top (required)>'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/uglifier-2.7.1/lib/uglifier.rb:3:in `require'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/uglifier-2.7.1/lib/uglifier.rb:3:in `<top (required)>'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.2/lib/bundler/runtime.rb:76:in `require'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.2/lib/bundler/runtime.rb:72:in `each'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.2/lib/bundler/runtime.rb:72:in `block in require'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.2/lib/bundler/runtime.rb:61:in `each'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.2/lib/bundler/runtime.rb:61:in `require'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/bundler-1.10.2/lib/bundler.rb:133:in `require'
from /home/hugo/pin_board/config/application.rb:7:in `<top (required)>'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/railties-4.0.5/lib/rails/commands.rb:74:in `require'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/railties-4.0.5/lib/rails/commands.rb:74:in `block in <top (required)>'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/railties-4.0.5/lib/rails/commands.rb:71:in `tap'
from /home/hugo/.rvm/gems/ruby-2.2.2/gems/railties-4.0.5/lib/rails/commands.rb:71:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
This seems like a similar question to ExecJS and could not find a JavaScript runtime. The resolution here was to ensure NodeJS was installed on the machine:
sudo apt-get install nodejs
uncomment
gem 'therubyracer', platforms: :ruby
in your Gemfile.
Please do
bundle install
after adding 'therubyracer' gem
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Closed 8 years ago.
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UPDATE: I fixed the error by installing rack-cache gem
I was trying to start a rails server on one of my project and got this error
/usr/local/rvm/gems/ruby-1.9.3-p448/gems/actionpack-4.0.0/lib/action_controller/metal/strong_parameters.rb:105: warning: already initialized constant NEVER_UNPERMITTED_PARAMS
/usr/local/rvm/gems/ruby-1.9.3-p448/gems/actionpack-4.0.0/lib/action_controller/metal/strong_parameters.rb:105: warning: already initialized constant NEVER_UNPERMITTED_PARAMS
WARNING: Nokogiri was built against LibXML version 2.8.0, but has dynamically loaded 2.7.8
/usr/local/rvm/gems/ruby-1.9.3-p448/gems/actionpack-action_caching-1.1.0/lib/action_controller/action_caching.rb:3:in `<module:Caching>': undefined method `eager_autoload' for ActionController::Caching:Module (NoMethodError)
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/actionpack-action_caching-1.1.0/lib/action_controller/action_caching.rb:2:in `<module:ActionController>'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/actionpack-action_caching-1.1.0/lib/action_controller/action_caching.rb:1:in `<top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `block in require'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/actionpack-action_caching-1.1.0/lib/actionpack/action_caching.rb:1:in `<top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p448#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:81:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p448#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:81:in `rescue in block in require'
from /usr/local/rvm/gems/ruby-1.9.3-p448#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:66:in `block in require'
from /usr/local/rvm/gems/ruby-1.9.3-p448#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p448#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p448#global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from /vagrant/captiv8/config/application.rb:7:in `<top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
from /usr/local/rvm/gems/ruby-1.9.3-p448/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
I tried to reinstall the actionpack gem but the problem still persist.
try command "bundle exec rails server"
i'm just starting with an Unix based OS
i installed RVM to do the same basic tutorial like windows(dos), but i get
an error, i tried to do the same work in root/user shell but is the same
when i run rails server i get this message:
/usr/local/rvm/gems/ruby-2.0.0-p247/gems/execjs-2.0.1/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/execjs-2.0.1/lib/execjs.rb:5:in `<module:ExecJS>'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/execjs-2.0.1/lib/execjs.rb:4:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/uglifier-2.2.1/lib/uglifier.rb:3:in `require'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/uglifier-2.2.1/lib/uglifier.rb:3:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from /home/raul/blog/config/application.rb:7:in `<top (required)>'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
from /usr/local/rvm/gems/ruby-2.0.0-p247/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
i reviwed the gem command and dome problems was founded too. Execjs is installed several times in my machine, root->user. This is what i get with gem check:
json-1.8.0.gem has 12 problems
ext/json/ext/generator/.RUBYARCHDIR.time:
Extra file
ext/json/ext/generator/Makefile:
Extra file
ext/json/ext/generator/generator.o:
Extra file
ext/json/ext/generator/generator.so:
Extra file
ext/json/ext/generator/siteconf20130920-14093-1b8hzo9.rb:
Extra file
ext/json/ext/parser/.RUBYARCHDIR.time:
Extra file
ext/json/ext/parser/Makefile:
Extra file
ext/json/ext/parser/parser.o:
Extra file
ext/json/ext/parser/parser.so:
Extra file
ext/json/ext/parser/siteconf20130920-14093-zefm93.rb:
Extra file
lib/json/ext/generator.so:
Extra file
lib/json/ext/parser.so:
Extra file
Just add a JavaScript runtime to your Gemfile (for example, execJS): gem 'execjs'
Then, just run bundle install and it should work.
Install node
sudo apt-get install nodejs
followed by
gem install execjs
or just put gem 'execjs' in your gemfile.
EDIT: i'm editing my answer based on your edits and comments.
I just set up a VPS to prepare for launching a Rails app and, on the actual remote server, I created a new rails project to test things out, only doing rails new blog -d postgresql. I then tried to start the server using the rails s command and got the error below.
.rvm/gems/ruby-1.9.3-p429#anwalt/gems/execjs-1.4.0/lib/execjs/runtimes.rb:51:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/execjs-1.4.0/lib/execjs.rb:5:in `<module:ExecJS>'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/execjs-1.4.0/lib/execjs.rb:4:in `<top (required)>'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/uglifier-2.1.1/lib/uglifier.rb:3:in `require'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/uglifier-2.1.1/lib/uglifier.rb:3:in `<top (required)>'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from /home/michael/blogy/config/application.rb:7:in `<top (required)>'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `require'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:78:in `block in <top (required)>'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `tap'
from /home/michael/.rvm/gems/ruby-1.9.3-p429#anwalt/gems/railties-4.0.0.rc1/lib/rails/commands.rb:75:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
I installed $ gem install execjs but still get the same error (I think I have to require it somewhere). Anyways, my question is, why wouldn't the rails s command work on a VPS out of the box the way that it works on a local machine, and, if not using rails s command how am I supposed to start the application once I do launch my real app (rather than this dummy app).
Try to install node.js via apt-get install nodejs or sudo apt-get install nodejs if you are using debian\ubuntu.
I am having real trouble trying to get TinyTDS working with Ruby 2.0.0 on Windows 7.
When i run a rails c (or require tiny_tds from an irb), i get the following:
D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require': cannot load such file -- tiny_tds/tiny_tds (LoadError)
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `block in require'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:236:in `load_dependency'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/activesupport-3.2.13/lib/active_support/dependencies.rb:251:in `require'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/tiny_tds-0.5.1-x86-mingw32/lib/tiny_tds.rb:16:in `rescue in <top (required)>'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/tiny_tds-0.5.1-x86-mingw32/lib/tiny_tds.rb:12:in `<top (required)>'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
from S:/code/user/app/ruby2_test/config/application.rb:7:in `<top (required)>'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/railties-3.2.13/lib/rails/commands.rb:39:in `require'
from D:/Ruby/Ruby200/lib/ruby/gems/2.0.0/gems/railties-3.2.13/lib/rails/commands.rb:39:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
I have tried installing the latest version of the gem:
gem install tiny_tds --pre
And looking inside:
D:\Ruby\Ruby200\lib\ruby\gems\2.0.0\gems\tiny_tds-0.6.0.rc1-x86-mingw32\lib\tiny_tds
I can see there is no 2.0 directory, which leads me to believe version 2.0 isn't supported. However i can see no mention on the TinyTDS github or any other sites about this issue.
So, am i missing something or does TinyTDS currently just not work with Ruby 2.0?
Copying the answer from the comments in order to remove this question from the "Unanswered" filter:
I believe this is an issue with OS that you are using as another
individual had the same issue. As stated I believe this is a
dependency issue with Windows. Please see the comment from MetaSkills
- https://github.com/rails-sqlserver/tiny_tds/issues/110#issuecomment-15503928
~ answer per David