`autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes

[Rai M]

I have installed

ruby 1.9.2p318 (2012-02-14 revision 34678) [i686-linux]
rails 3.2.2
gem 1.8.21

on ubuntu 10.04


when i created my first application and tried running it on server I
get the following error not sure how to proceed further....

/home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/execjs-1.3.0/lib/execjs/
runtimes.rb:50:in `autodetect': Could not find a JavaScript runtime.
See https://github.com/sstephenson/execjs for a list of available
runtimes. (ExecJS::RuntimeUnavailable)
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/execjs-1.3.0/lib/
execjs.rb:5:in `<module:ExecJS>'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/execjs-1.3.0/lib/
execjs.rb:4:in `<top (required)>'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/coffee-
script-2.2.0/lib/coffee_script.rb:1:in `require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/coffee-
script-2.2.0/lib/coffee_script.rb:1:in `<top (required)>'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/coffee-
script-2.2.0/lib/coffee-script.rb:1:in `require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/coffee-
script-2.2.0/lib/coffee-script.rb:1:in `<top (required)>'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/coffee-
rails-3.2.2/lib/coffee-rails.rb:1:in `require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/coffee-
rails-3.2.2/lib/coffee-rails.rb:1:in `<top (required)>'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/bundler-1.1.3/lib/
bundler/runtime.rb:68:in `require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/bundler-1.1.3/lib/
bundler/runtime.rb:68:in `block (2 levels) in require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/bundler-1.1.3/lib/
bundler/runtime.rb:66:in `each'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/bundler-1.1.3/lib/
bundler/runtime.rb:66:in `block in require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/bundler-1.1.3/lib/
bundler/runtime.rb:55:in `each'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/bundler-1.1.3/lib/
bundler/runtime.rb:55:in `require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/bundler-1.1.3/lib/
bundler.rb:119:in `require'
from /home/fakirbaba/mitin/railsprograms/firstapp/config/
application.rb:7:in `<top (required)>'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/railties-3.2.2/
lib/rails/commands.rb:53:in `require'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/railties-3.2.2/
lib/rails/commands.rb:53:in `block in <top (required)>'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/railties-3.2.2/
lib/rails/commands.rb:50:in `tap'
from /home/fakirbaba/.rvm/gems/ruby-1.9.2-p318/gems/railties-3.2.2/
lib/rails/commands.rb:50:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'


thanks

[Rai M]

re installed gem
execjs (1.3.0)

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[Prabu Duraisamy]

Hi,

Install JavaScript runtime environment in your systems by using
following steps.

Add in Gemfile,

gem 'execjs'
gem 'therubyracer'

and run bundle install.

Rai M wrote in post #1053476:

--
Posted via http://www.ruby-forum.com/.

[Colin Law]

On 27 March 2012 07:13, Rai M <mrai...@gmail.com> wrote:
> re installed gem
> execjs (1.3.0)

So has that fixed it? Not much point telling us you have re-installed
unless you tell us what the outcome was.

Colin

--
gplus.to/clanlaw

[Pravin Mishra]

I faced same issues. add these gem in assets group

gem 'uglifier'
  gem 'therubyracer'

then run bundle install.

It works for me.

[Rai M]

no the problem is still same.......

On Tue, Mar 27, 2012 at 2:28 PM, Colin Law <cla...@googlemail.com> wrote:

On 27 March 2012 07:13, Rai M <mrai...@gmail.com> wrote:
> re installed gem

> execjs (1.3.0)o t

[Chitrank Samaiya]

add gem therubyracer in your gemfile,then check it.
for ubantu users it gives problem while fir window there is no such problem.


regards
chitrank

[Pravin Mishra]

include this gem too in gem file and run bunlde install

gem 'execjs'

http://stackoverflow.com/questions/6282307/execjs-and-could-not-find-a-javascript-runtime

[Buminda N.]

unknown wrote in post #1096534:
> sudo apt-get install nodejs
> worked for me


Thanks , this worked for me and rails server is now up and running.

[Buminda N.]