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Asked: 2026-06-12T19:33:36+00:00

I am starting to learn Ruby on Rails but have been stuck at the

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I am starting to learn Ruby on Rails but have been stuck at the basic installation part for 2 days now. I was following a tutorial which mentions starting the server with the rails server command.

Running this command, I get the following output:

$ rails server
/home/niranjan/.rvm/gems/ruby-1.9.3-p194/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/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/execjs-1.4.0/lib/execjs.rb:5:in `<module:ExecJS>'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/execjs-1.4.0/lib/execjs.rb:4:in `<top (required)>'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `<top (required)>'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `<top (required)>'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in `<top (required)>'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:68:in `require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:66:in `each'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:66:in `block in require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:55:in `each'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler/runtime.rb:55:in `require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194@global/gems/bundler-1.1.5/lib/bundler.rb:119:in `require'
    from /home/niranjan/fourth_app/config/application.rb:7:in `<top (required)>'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:53:in `require'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:53:in `block in <top (required)>'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:50:in `tap'
    from /home/niranjan/.rvm/gems/ruby-1.9.3-p194/gems/railties-3.2.8/lib/rails/commands.rb:50:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

I have been having several different problems and I have done rvm implode and reinstall several times. I have the rvm scripts in the PATH variable. 

$ rvm -v

rvm 1.15.7 (stable) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]

 $ ruby -v
ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]


$ rails -v
Rails 3.2.8

I am using Linux Mint 12. Any help/suggestion would be appreciated.

Thanks

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1 Answer

  1. Editorial Team

    Try this, it worked for me

    Add following lines in your ‘Gemfile’ (Placed in directory created for Rails project)

    gem ‘therubyracer’

    gem ‘execjs’

    and run this command in your terminal

    bundle install

    Thats it..!! 🙂

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