title: Libv8 error when deploying a rails app to a Ubuntu 10.04 VPS
body: <p>I've installed nodejs and my app's Gemfile doesn't have any reference to therubyracer nor libv8.
  This error keeps popping up:</p>
  
  <p><code>The Ruby Racer requires libv8 ~&gt; 3.11.8...</code></p>
  
  <p>Any help is much appreciated!</p>
  
  <p>My Gemfile.lock:</p>
  
  <pre>
  GEM
    remote: https://rubygems.org/
    specs:
      Ascii85 (1.0.2)
      actionmailer (3.2.12)
        actionpack (= 3.2.12)
        mail (~> 2.4.4)
      actionpack (3.2.12)
        activemodel (= 3.2.12)
        activesupport (= 3.2.12)
        builder (~> 3.0.0)
        erubis (~> 2.7.0)
        journey (~> 1.0.4)
        rack (~> 1.4.5)
        rack-cache (~> 1.2)
        rack-test (~> 0.6.1)
        sprockets (~> 2.2.1)
      activemodel (3.2.12)
        activesupport (= 3.2.12)
        builder (~> 3.0.0)
      activerecord (3.2.12)
        activemodel (= 3.2.12)
        activesupport (= 3.2.12)
        arel (~> 3.0.2)
        tzinfo (~> 0.3.29)
      activeresource (3.2.12)
        activemodel (= 3.2.12)
        activesupport (= 3.2.12)
      activesupport (3.2.12)
        i18n (~> 0.6)
        multi_json (~> 1.0)
      afm (0.2.0)
      arel (3.0.2)
      bcrypt-ruby (3.0.1)
      better_errors (0.6.0)
        coderay (>= 1.0.0)
        erubis (>= 2.6.6)
      binding_of_caller (0.7.1)
        debug_inspector (>= 0.0.1)
      builder (3.0.4)
      cancan (1.6.9)
      capistrano (2.14.2)
        highline
        net-scp (>= 1.0.0)
        net-sftp (>= 2.0.0)
        net-ssh (>= 2.0.14)
        net-ssh-gateway (>= 1.1.0)
      capybara (2.0.2)
        mime-types (>= 1.16)
        nokogiri (>= 1.3.3)
        rack (>= 1.0.0)
        rack-test (>= 0.5.4)
        selenium-webdriver (~> 2.0)
        xpath (~> 1.0.0)
      carrierwave (0.8.0)
        activemodel (>= 3.2.0)
        activesupport (>= 3.2.0)
      celluloid (0.12.4)
        facter (>= 1.6.12)
        timers (>= 1.0.0)
      childprocess (0.3.8)
        ffi (~> 1.0, >= 1.0.11)
      chosen-rails (0.9.11.2)
        coffee-rails (>= 3.2)
        railties (>= 3.0)
        sass-rails (>= 3.2)
      coderay (1.0.8)
      coffee-rails (3.2.2)
        coffee-script (>= 2.2.0)
        railties (~> 3.2.0)
      coffee-script (2.2.0)
        coffee-script-source
        execjs
      coffee-script-source (1.4.0)
      columnize (0.3.6)
      connection_pool (1.0.0)
      daemons (1.1.9)
      database_cleaner (0.9.1)
      debug_inspector (0.0.2)
      debugger (1.3.1)
        columnize (>= 0.3.1)
        debugger-linecache (~> 1.1.1)
        debugger-ruby_core_source (~> 1.1.8)
      debugger-linecache (1.1.2)
        debugger-ruby_core_source (>= 1.1.1)
      debugger-ruby_core_source (1.1.8)
      diff-lcs (1.1.3)
      erubis (2.7.0)
      eventmachine (1.0.0)
      execjs (1.4.0)
        multi_json (~> 1.0)
      facter (1.6.17)
      factory_girl (4.2.0)
        activesupport (>= 3.0.0)
      factory_girl_rails (4.2.1)
        factory_girl (~> 4.2.0)
        railties (>= 3.0.0)
      faraday (0.8.5)
        multipart-post (~> 1.1)
      ffi (1.4.0)
      hashery (2.1.0)
      hashie (1.2.0)
      highline (1.6.15)
      hike (1.2.1)
      httpauth (0.2.0)
      i18n (0.6.1)
      journey (1.0.4)
      jquery-datatables-rails (1.11.2)
        jquery-rails
      jquery-rails (2.2.1)
        railties (>= 3.0, = 0.14, = 3.1.0)
      json (1.7.7)
      jwt (0.1.5)
        multi_json (>= 1.0)
      kgio (2.8.0)
      mail (2.4.4)
        i18n (>= 0.4.0)
        mime-types (~> 1.16)
        treetop (~> 1.4.8)
      mime-types (1.21)
      mini_magick (3.5.0)
        subexec (~> 0.2.1)
      multi_json (1.6.1)
      multipart-post (1.1.5)
      net-scp (1.1.0)
        net-ssh (>= 2.6.5)
      net-sftp (2.1.1)
        net-ssh (>= 2.6.5)
      net-ssh (2.6.5)
      net-ssh-gateway (1.2.0)
        net-ssh (>= 2.6.5)
      nokogiri (1.5.6)
      oauth2 (0.8.0)
        faraday (~> 0.8)
        httpauth (~> 0.1)
        jwt (~> 0.1.4)
        multi_json (~> 1.0)
        rack (~> 1.2)
      omniauth (1.1.3)
        hashie (~> 1.2)
        rack
      omniauth-google-oauth2 (0.1.13)
        omniauth (~> 1.0)
        omniauth-oauth2
      omniauth-oauth2 (1.1.1)
        oauth2 (~> 0.8.0)
        omniauth (~> 1.0)
      paper_trail (2.7.1)
        activerecord (~> 3.0)
        railties (~> 3.0)
      pdf-reader (1.3.1)
        Ascii85 (~> 1.0.0)
        afm (~> 0.2.0)
        hashery (~> 2.0)
        ruby-rc4
        ttfunk
      pg (0.14.1)
      polyglot (0.3.3)
      prawn (0.12.0)
        pdf-reader (>= 0.9.0)
        ttfunk (~> 1.0.2)
      rack (1.4.5)
      rack-cache (1.2)
        rack (>= 0.4)
      rack-ssl (1.3.3)
        rack
      rack-test (0.6.2)
        rack (>= 1.0)
      rails (3.2.12)
        actionmailer (= 3.2.12)
        actionpack (= 3.2.12)
        activerecord (= 3.2.12)
        activeresource (= 3.2.12)
        activesupport (= 3.2.12)
        bundler (~> 1.0)
        railties (= 3.2.12)
      railties (3.2.12)
        actionpack (= 3.2.12)
        activesupport (= 3.2.12)
        rack-ssl (~> 1.3.2)
        rake (>= 0.8.7)
        rdoc (~> 3.4)
        thor (>= 0.14.6,  1.4)
      redis (3.0.2)
      redis-namespace (1.2.1)
        redis (~> 3.0.0)
      rspec-core (2.12.2)
      rspec-expectations (2.12.1)
        diff-lcs (~> 1.1.3)
      rspec-mocks (2.12.2)
      rspec-rails (2.12.2)
        actionpack (>= 3.0)
        activesupport (>= 3.0)
        railties (>= 3.0)
        rspec-core (~> 2.12.0)
        rspec-expectations (~> 2.12.0)
        rspec-mocks (~> 2.12.0)
      ruby-rc4 (0.1.5)
      rubyzip (0.9.9)
      sass (3.2.5)
      sass-rails (3.2.6)
        railties (~> 3.2.0)
        sass (>= 3.1.10)
        tilt (~> 1.3)
      selenium-webdriver (2.29.0)
        childprocess (>= 0.2.5)
        multi_json (~> 1.0)
        rubyzip
        websocket (~> 1.0.4)
      sidekiq (2.7.2)
        celluloid (~> 0.12.0)
        connection_pool (~> 1.0)
        multi_json (~> 1)
        redis (~> 3)
        redis-namespace
      simple_form (2.0.4)
        actionpack (~> 3.0)
        activemodel (~> 3.0)
      sprockets (2.2.2)
        hike (~> 1.2)
        multi_json (~> 1.0)
        rack (~> 1.0)
        tilt (~> 1.1, != 1.3.0)
      subexec (0.2.2)
      thin (1.5.0)
        daemons (>= 1.0.9)
        eventmachine (>= 0.12.6)
        rack (>= 1.0.0)
      thor (0.17.0)
      tilt (1.3.3)
      timers (1.1.0)
      treetop (1.4.12)
        polyglot
        polyglot (>= 0.3.1)
      ttfunk (1.0.3)
      tzinfo (0.3.35)
      uglifier (1.3.0)
        execjs (>= 0.3.0)
        multi_json (~> 1.0, >= 1.0.2)
      unicorn (4.6.0)
        kgio (~> 2.6)
        rack
        raindrops (~> 0.7)
      websocket (1.0.7)
      xpath (1.0.0)
        nokogiri (~> 1.3)
  
  PLATFORMS
    ruby
  
  DEPENDENCIES
    bcrypt-ruby
    better_errors
    binding_of_caller
    cancan
    capistrano
    capybara
    carrierwave
    chosen-rails
    coffee-rails
    database_cleaner
    debugger
    factory_girl_rails
    jquery-datatables-rails
    jquery-rails
    jquery-ui-rails
    mini_magick
    omniauth-google-oauth2
    paper_trail
    pg
    prawn
    rails
    rspec-rails
    sass-rails
    sidekiq
    simple_form
    thin
    uglifier
    unicorn
  </pre>