title: LoadError: incompatible library version with nokogiri 1.6.8.1
body: <p>I am working on quite old project which is running on old version of Ruby and Rails.</p>
  
  <p>Ruby Version  = 1.9.3p551</p>
  
  <p>Rails verison = 3.1.10</p>
  
  <p>So when i am trying to configure this project on new machine the it shows
  the error related to NOKOGIRI.</p>
  
  <p>"LoadError: incompatible library version - /home/global/.rvm/gems/ruby-1.9.3-p551/gems/nokogiri-1.6.8.1/lib/nokogiri/nokogiri.so
  /home/global/.rvm/gems/ruby-1.9.3-p551/gems/nokogiri-1.6.8.1/lib/nokogiri.rb:32:in <code>require'
  /home/global/.rvm/gems/ruby-1.9.3-p551/gems/nokogiri-1.6.8.1/lib/nokogiri.rb:32:in</code>rescue in '
  /home/global/.rvm/gems/ruby-1.9.3-p551/gems/nokogiri-1.6.8.1/lib/nokogiri.rb:28:in <code>&lt;top (required)&gt;'
  /var/www/glo/config/application.rb:7:in</code>'
  /var/www/glo/Rakefile:4:in <code>&lt;top (required)&gt;'
  LoadError: cannot load such file -- nokogiri/2.3/nokogiri
  /home/global/.rvm/gems/ruby-1.9.3-p551/gems/nokogiri-1.6.8.1/lib/nokogiri.rb:30:in</code>require'
  /home/global/.rvm/gems/ruby-1.9.3-p551/gems/nokogiri-1.6.8.1/lib/nokogiri.rb:30:in <code>&lt;top (required)&gt;'
  /var/www/glo/config/application.rb:7:in</code>'
  /var/www/glo/Rakefile:4:in `'
  (See full trace by running task with --trace)
  global@del1-lhp-N01167:/var/www/glo$ ruby -v
  ruby 1.9.3p551 (2014-11-13 revision 48407) [x86_64-linux]
  "</p>
  
  <p>I have tried many things but still this problem is not solved.</p>
  
  <p>So please help me out from this.</p>
  
  <p>Thanks</p>