WARNING: Nokogiri was built against LibXML version 2.7.3, but has dynamically loaded 2.7.8
nokogiri, osx-mountain-lion, ruby-on-rails
Solution
I have found some fixes for Lion, but none for Mountain Lion yet. Nonetheless I have tried this and it works:
gem uninstall nokogiri libxml-ruby
brew update
brew uninstall libxml2
brew install libxml2 --with-xml2-config
brew link libxml2
brew install libxslt
brew link libxslt
gem install nokogiri -- --with-xml2-include=/usr/local/Cellar/libxml2/2.8.0/include/libxml2/ --with-xml2-lib=/usr/local/Cellar/libxml2/2.8.0/lib/ --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.26/
Source (for Lion): https://gist.github.com/1349681
Problem
After making a fresh install of Mac OS X 10.8 Mountain Lion, and after installing Ruby 1.9.3 and Ruby on Rails 3.2.6, I started the Rails console and I got this warning message: WARNING: Nokogiri was built against LibXML version 2.7.3, but has dynamically loaded 2.7.8 How can I fix it?