I have done *bundle install* and *bundle update *successfully*.* But *rails server *is not working. I have also tried *rails s -p $PORT -b $IP*. *darko@darko-Lenovo-G570 ~/sample_app $ gem install execjs* Successfully installed execjs-2.2.2 Parsing documentation for execjs-2.2.2 Installing ri documentation for execjs-2.2.2 Done installing documentation for execjs after 0 seconds 1 gem installed *darko@darko-Lenovo-G570 ~/sample_app $ rails server* /home/darko/.rvm/gems/ruby-2.1.1/gems/execjs-2.2.2/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/darko/.rvm/gems/ruby-2.1.1/gems/execjs-2.2.2/lib/execjs.rb:5:in `<module:ExecJS>' from /home/darko/.rvm/gems/ruby-2.1.1/gems/execjs-2.2.2/lib/execjs.rb:4:in `<top (required)>' from /home/darko/.rvm/gems/ruby-2.1.1/gems/uglifier-2.5.3/lib/uglifier.rb:3:in `require' from /home/darko/.rvm/gems/ruby-2.1.1/gems/uglifier-2.5.3/lib/uglifier.rb:3:in `<top (required)>' from /home/darko/.rvm/gems/ruby-2.1.1@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:76:in `require' from /home/darko/.rvm/gems/ruby-2.1.1@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require' from /home/darko/.rvm/gems/ruby-2.1.1@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:72:in `each' from /home/darko/.rvm/gems/ruby-2.1.1@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:72:in `block in require' from /home/darko/.rvm/gems/ruby-2.1.1@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:61:in `each' from /home/darko/.rvm/gems/ruby-2.1.1@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:61:in `require' from /home/darko/.rvm/gems/ruby-2.1.1@global/gems/bundler-1.7.6/lib/bundler.rb:133:in `require' from /home/darko/sample_app/config/application.rb:7:in `<top (required)>' from /home/darko/.rvm/gems/ruby-2.1.1/gems/railties-4.2.0.beta2/lib/rails/commands/commands_tasks.rb:78:in `require' from /home/darko/.rvm/gems/ruby-2.1.1/gems/railties-4.2.0.beta2/lib/rails/commands/commands_tasks.rb:78:in `block in server' from /home/darko/.rvm/gems/ruby-2.1.1/gems/railties-4.2.0.beta2/lib/rails/commands/commands_tasks.rb:75:in `tap' from /home/darko/.rvm/gems/ruby-2.1.1/gems/railties-4.2.0.beta2/lib/rails/commands/commands_tasks.rb:75:in `server' from /home/darko/.rvm/gems/ruby-2.1.1/gems/railties-4.2.0.beta2/lib/rails/commands/commands_tasks.rb:39:in `run_command!' from /home/darko/.rvm/gems/ruby-2.1.1/gems/railties-4.2.0.beta2/lib/rails/commands.rb:17:in `<top (required)>' from /home/darko/sample_app/bin/rails:8:in `require' from /home/darko/sample_app/bin/rails:8:in `<top (required)>' from /home/darko/.rvm/gems/ruby-2.1.1/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `load' from /home/darko/.rvm/gems/ruby-2.1.1/gems/spring-1.1.3/lib/spring/client/rails.rb:27:in `call' from /home/darko/.rvm/gems/ruby-2.1.1/gems/spring-1.1.3/lib/spring/client/command.rb:7:in `call' from /home/darko/.rvm/gems/ruby-2.1.1/gems/spring-1.1.3/lib/spring/client.rb:26:in `run' from /home/darko/.rvm/gems/ruby-2.1.1/gems/spring-1.1.3/bin/spring:48:in `<top (required)>' from /home/darko/.rvm/gems/ruby-2.1.1/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `load' from /home/darko/.rvm/gems/ruby-2.1.1/gems/spring-1.1.3/lib/spring/binstub.rb:11:in `<top (required)>' from /home/darko/sample_app/bin/spring:16:in `require' from /home/darko/sample_app/bin/spring:16:in `<top (required)>' from bin/rails:3:in `load' from bin/rails:3:in `<main>' -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/e0e0c196-623d-4cd7-a351-e93a81c937c6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.