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Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)

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By User


My website has been broken since Dreamhost upgraded their servers a couple of weeks ago. I have been tearing my hair out trying to get it fixed and made some progress but am stuck on what is hopefully the final issue.



I'm using Rails 3.1.1 on Ruby 1.8.7 and get presented with a 'Ruby (Rack) application could not be started error' from PhusionPassenger. It states that it 'Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)'. Searching for this on Dreamhost's wiki has suggested a solution to install 'therubyracer' gem.



So I updated my gemfile with the suggested gem like so:




gem 'therubyracer', '~> 0.9.9'




EDIT: I have also tried adding to the file with:




gem 'therubyracer', :platforms => :ruby




but it hasn't made a difference.



Then bundle installed on my Macbook (running OS X 10.5.8) without hitch. However, this fails when I run 'cap deploy' to put on Dreamhost; I see an error when it attempts to install libv8 which therubyracer depends on.



Anyone know how to get this to install correctly or any other working solution?



Any other info can be provided upon request.



Full error feedback from Terminal:




  • executing "cd /home/futureproof/abunchofletters.co.uk/releases/20111118003703 && bundle install --gemfile /home/futureproof/abunchofletters.co.uk/releases/20111118003703/Gemfile --path /home/futureproof/.gems/bundle --deployment --quiet --without development test" servers: ["abunchofletters.co.uk"] [abunchofletters.co.uk] executing command ** [out :: abunchofletters.co.uk] Unfortunately, a fatal error has occurred. Please report this error to the Bundler issue tracker at https://github.com/carlhuda/bundler/issues so that we can fix it. Thanks! ** [out :: abunchofletters.co.uk] /usr/lib/ruby/1.8/rubygems/installer.rb:483:in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError) ** [out :: abunchofletters.co.uk] ** [out :: abunchofletters.co.uk] /usr/bin/ruby1.8 extconf.rb ** [out :: abunchofletters.co.uk] *** extconf.rb failed *** ** [out :: abunchofletters.co.uk] Could not create Makefile due to some reason, probably lack of ** [out :: abunchofletters.co.uk] necessary libraries and/or headers. Check the mkmf.log file for more ** [out :: abunchofletters.co.uk] details. You may need configuration options. ** [out :: abunchofletters.co.uk] ** [out :: abunchofletters.co.uk] Provided configuration options: ** [out :: abunchofletters.co.uk] --with-opt-dir ** [out :: abunchofletters.co.uk] --without-opt-dir ** [out :: abunchofletters.co.uk] --with-opt-include ** [out :: abunchofletters.co.uk] --without-opt-include=${opt-dir}/include ** [out :: abunchofletters.co.uk] --with-opt-lib ** [out :: abunchofletters.co.uk] --without-opt-lib=${opt-dir}/lib ** [out :: abunchofletters.co.uk] --with-make-prog ** [out :: abunchofletters.co.uk] --without-make-prog ** [out :: abunchofletters.co.uk] --srcdir=. ** [out :: abunchofletters.co.uk] --curdir ** [out :: abunchofletters.co.uk] --ruby=/usr/bin/ruby1.8 ** [out :: abunchofletters.co.uk] extconf.rb:13: uninitialized constant Gem (NameError) ** [out :: abunchofletters.co.uk] Checking for Python... ** [out :: abunchofletters.co.uk] ** [out :: abunchofletters.co.uk] Gem files will remain installed in /home/futureproof/.gems/bundle/ruby/1.8/gems/libv8-3.3.10.4 for inspection. ** [out :: abunchofletters.co.uk] Results logged to /home/futureproof/.gems/bundle/ruby/1.8/gems/libv8-3.3.10.4/ext/libv8/gem_make.out ** [out :: abunchofletters.co.uk] from /usr/lib/ruby/1.8/rubygems/installer.rb:446:in each' ** [out :: abunchofletters.co.uk] from /usr/lib/ruby/1.8/rubygems/installer.rb:446:in build_extensions' ** [out :: abunchofletters.co.uk] from /usr/lib/ruby/1.8/rubygems/installer.rb:198:in install' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/source.rb:90:in install' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/rubygems_integration.rb:78:in preserve_paths' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/source.rb:89:in install' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/installer.rb:73:in install_gem_from_spec' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/rubygems_integration.rb:93:in with_build_args' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/installer.rb:72:in install_gem_from_spec' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/installer.rb:56:in run' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/installer.rb:55:in run' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/installer.rb:12:in install' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/cli.rb:219:in install' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/vendor/thor/task.rb:22:in send' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/vendor/thor/task.rb:22:in run' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/vendor/thor/invocation.rb:118:in invoke_task' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/vendor/thor.rb:263:in dispatch' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/lib/bundler/vendor/thor/base.rb:386:in start' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/gems/bundler-1.1.rc/bin/bundle:13 ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/bin/bundle:19:in load' ** [out :: abunchofletters.co.uk] from /home/futureproof/.gems/bin/bundle:19 command finished in 13170ms * [deploy:update_code] rolling back * executing "rm -rf /home/futureproof/abunchofletters.co.uk/releases/20111118003703; true" servers: ["abunchofletters.co.uk"] [abunchofletters.co.uk] executing command command finished in 563ms failed: "sh -c 'cd /home/futureproof/abunchofletters.co.uk/releases/20111118003703 && bundle install --gemfile /home/futureproof/abunchofletters.co.uk/releases/20111118003703/Gemfile --path /home/futureproof/.gems/bundle --deployment --quiet --without development test'" on abunchofletters.co.uk



Source: Tips4all, CCNA FINAL EXAM
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Comments

  1. UserMay 13, 2012 at 8:22 AM

    If you're on Ubuntu, install nodejs

    sudo apt-get install nodejs

    ReplyDelete
  2. UserMay 13, 2012 at 8:22 AM

    i use this gems on Dreamhost with Rails 3.1 for the Asset Pipeline

    group :assets do
    gem 'execjs'
    gem 'therubyracer', :platforms => :ruby
    gem 'johnson'
    gem 'sass-rails', " ~> 3.1.0"
    gem 'coffee-rails', "~> 3.1.0"
    gem 'uglifier'
    end


    therubyracer as precompiler, and johnson as runtime.

    This work for me in 2 Rails 3.1 apps hosted by Dreamhost.

    ReplyDelete
  3. UserMay 13, 2012 at 8:22 AM

    I just a saw a presentation on this.

    I've used rubytheracer up till now. Apparently it ain't so great. And it's huge.

    But you can use any javascript runtime.

    The other two recommended are execjs and node.js (which is very hot right now).

    Make sure to gem install the selected gem and then bundle install or bundle update for your app.

    One other note is that you should switch to 1.9.2 also.
    Install RVM (bash < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer))
    and you can have both 1.8.7 and 1.9.2 side-by-side.

    ReplyDelete

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