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Getting error in "rails s", server is not running

This is Rails 3.1.0

What I've done:

rails new site cd site rails s

The message I received:

 /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/execjs-1.2.9/lib/execjs/runtimes.rb:47:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable) from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/execjs-1.2.9/lib/execjs.rb:5:in `<module:ExecJS>' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/execjs-1.2.9/lib/execjs.rb:4:in `<top (required)>' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in `<top (required)>' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in `<top (required)>' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/coffee-rails-3.1.1/lib/coffee-rails.rb:1:in `require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/coffee-rails-3.1.1/lib/coffee-rails.rb:1:in `<top (required)>' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `block (2 levels) in require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `each' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `block in require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `each' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/bundler-1.0.21/lib/bundler.rb:122:in `require' from /home/user1/social/config/application.rb:7:in `<top (required)>' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.1.0/lib/rails/commands.rb:52:in `require' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.1.0/lib/rails/commands.rb:52:in `block in <top (required)>' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.1.0/lib/rails/commands.rb:49:in `tap' from /home/user1/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.1.0/lib/rails/commands.rb:49:in `<top (required)>' from script/rails:6:in `require' from script/rails:6:in `<main>'

Why did I get this error?

Can someone tell me to fix this?

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5 answers

You may also need to install node.js (helped me)

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As the error is mentioned, you have not installed the Javascript runtime. You must choose it yourself.

Add this to your gemfile:

 gem "therubyracer"

Then run bundle install and try again.

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 $sudo apt-get install nodejs

worked for me ...

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Just open the "Gemfile" file inside the root directory of your application folder, and then paste the following lines there.

 gem 'execjs' gem 'libv8' gem 'therubyracer'

After pasting it, just save the file and perform a batch update on the command line.

When the package update completes, you try to run "rails s". It works!

Thanks.

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Seeing your question, your system complains about lack of JavaScript runtime.

you should visit https://github.com/sstephenson/execjs for a list of features.

I suggest you download node.js from this http://nodejs.org/ .

follow as follows:

 cd *your download dir* tar xvf node-v0.4.11.tar.gz cd node-v0.4.11 ./configure make sudo make install

I give this answer because it works for me.

This answer will be helpful to you.

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