[one-users] nokogiri install error!

[mario wu]

hi,all
       i had a nokogiri install error on ubuntu 12.04.2.

       "gem install nokogiri
        ERROR:  Error installing nokogiri:
        nokogiri requires Ruby version >= 1.9.2.
        "

        intall the ruby 1.9.3 don't help. i use

        "
        gem install 'nokogiri' -v  '1.5.9'
        "

         finally install success!  just in case someone has same problem.
         is there some good procedure resolve the problem?
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