Error while Installing Nokogiri? mini_portile not available? - ruby

Question

My Local Gem List
bundler (1.6.0)
childprocess (0.5.1)
ffi (1.9.3)
headless (1.0.1)
json (1.8.1)
mini_portile (0.5.3, 0.5.2)
minitest (5.3.1)
multi_json (1.9.0)
rake (10.2.2)
rdoc (4.1.1)
rubyzip (1.1.2)
selenium-webdriver (2.41.0, 2.40.0)
watir-webdriver (0.6.8)
websocket (1.0.7, 1.0.4)
I have also installed libxml2 and libxslt.
It says cannot load mini_portile gem but it shows in the local gem list.
Also I cannot sudo as I don't have the root privileges.
Error Message
Building native extensions. This could take a while...
ERROR: Error installing nokogiri-1.6.1.gem:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.
Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/bin/ruby1.9.1
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file -- mini_portile (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:92:in `<main>'
Gem files will remain installed in /home/jotsarup/.gem/gems/nokogiri-1.6.1 for inspection.
Results logged to /home/jotsarup/.gem/gems/nokogiri-1.6.1/ext/nokogiri/gem_make.out

Answer 1

Try to install nokogiri requirements first if u are using Ubuntu.
sudo apt-get install libxslt-dev libxml2-dev
sudo gem install nokogiri
other wise follow this link for Nokogiri Installation

Answer 2

Also try to set GEM_HOME to an absolute path like this:
GEM_HOME=$(pwd)/.gem gem1.9.3 install nokogiri
Using an relative path for GEM_HOME resulted in the mentioned error.