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I have installed Ruby, RubyGems and then Jekyll, but when I run Jekyll I'm getting this error.

$ jekyll serve
/var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:365:in `require_program': program version required (Commander::Runner::CommandError)
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:364:in `each'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:364:in `require_program'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:52:in `run!'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/delegates.rb:7:in `run!'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/import.rb:10
    from /usr/local/bin/jekyll:19
/usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require': no such file to load -- json (LoadError)
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.8/gems/jekyll-1.3.0/bin/../lib/jekyll/filters.rb:2
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.8/gems/jekyll-1.3.0/bin/../lib/jekyll.rb:43
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.8/gems/jekyll-1.3.0/bin/jekyll:7
    from /usr/local/bin/jekyll:19:in `load'
    from /usr/local/bin/jekyll:19
somasundaram@somasundaram-Inspiron-3521:~/allfiles/msomu/msomu.github.io$ ^C
somasundaram@somasundaram-Inspiron-3521:~/allfiles/msomu/msomu.github.io$ jekyll/var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:365:in `require_program': program version required (Commander::Runner::CommandError)
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:364:in `each'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:364:in `require_program'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/runner.rb:52:in `run!'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/delegates.rb:7:in `run!'
    from /var/lib/gems/1.8/gems/commander-4.1.5/lib/commander/import.rb:10
    from /usr/local/bin/jekyll:19
/usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require': no such file to load -- json (LoadError)
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.8/gems/jekyll-1.3.0/bin/../lib/jekyll/filters.rb:2
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.8/gems/jekyll-1.3.0/bin/../lib/jekyll.rb:43
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
    from /usr/lib/ruby/vendor_ruby/1.8/rubygems/custom_require.rb:36:in `require'
    from /var/lib/gems/1.8/gems/jekyll-1.3.0/bin/jekyll:7
    from /usr/local/bin/jekyll:19:in `load'
    from /usr/local/bin/jekyll:19

Also if there is no way to fix it please help me if someone tells me how to completely remove Ruby, RubyGems Jekyll and fresh install it or fix this error.

Somasundaram Mahesh
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  • So are you on a mac? Did you install xcode command line tools? – aharris88 Nov 23 '13 at 22:38
  • I'm using Ubuntu 12.04 LTS on Dell – Somasundaram Mahesh Nov 24 '13 at 15:40
  • Did you run "jekyll build" first? – aharris88 Nov 24 '13 at 23:30
  • Same problem on Centos 6.4, will come back here if I find something. – Kev Nov 25 '13 at 11:51
  • To solve this error I have reinstalled ruby completely, using RVM this time.

    I'm on centos but I'll write a summary of the commands I've ran, that could be useful to someone:

    `curl -L get.rvm.io | bash -s stable`

`source /etc/profile.d/rvm.sh // this can change`

`rvm requirements`

`rvm install ruby-2.0.0-p353`

    rvm use 2.0.0 --default

    `rvm rubygems current`
     – Kev Nov 25 '13 at 12:20

1 Answers1

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I had the same error as you and after installing the JSON gem by sudo gem install json I had no problems. https://stackoverflow.com/questions/19788258/error-when-running-jekyll-new-command

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