问题
When I run sudo gem install nokogiri on Ubuntu 12.1, I'm returned with this. What's wrong and how do I fix it?
jason@jason:~/ror/clss$ sudo gem install nokogiri
Building native extensions. This could take a while...
ERROR: Error installing nokogiri:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.9.1 extconf.rb
/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require': cannot load such file
-- mkmf (LoadError)
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from extconf.rb:5:in `<main>'
Gem files will remain installed in /var/lib/gems/1.9.1/gems/nokogiri-1.5.5 for
inspection. Results logged to /var/lib/gems/1.9.1/gems/nokogiri-1.5.5/ext/nokogiri
/gem_make.out
回答1:
Try to install the "libxslt-dev" and "libxml2-dev" packages:
sudo apt-get install libxslt-dev libxml2-dev
The instructions are on http://nokogiri.org/tutorials/installing_nokogiri.html
Update:
You need sudo aptitude install ruby1.9.1-dev.
Source: "Rails Tutorial: nokogiri-1.5.2 error on bundle install".
来源：https://stackoverflow.com/questions/13488129/unable-to-install-nokogiri