ruby on rails - Incompatible library version: nokogiri.bundle requires version 11.0.0 or later, but libxml2.2.dylib

Question

I'm getting this error when trying to run rspec in Hartl's tutorial. I googled the error, but it's never for the specific version and the fixes don't actually fix my problem.

/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/lib/nokogiri.rb:28:in `require': dlopen(/Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-           1.6.0/lib/nokogiri/nokogiri.bundle, 9): Library not loaded:    /Users/Jimbo/.bundler/tmp/22862/gems/nokogiri-1.6.0/ports/i686-apple-   darwin11/libxml2/2.8.0/lib/libxml2.2.dylib (LoadError)
Referenced from: /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-  1.6.0/lib/nokogiri/nokogiri.bundle
Reason: Incompatible library version: nokogiri.bundle requires version 11.0.0 or later, but libxml2.2.dylib provides version 10.0.0 - /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/lib/nokogiri/nokogiri.bundle
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/lib/nokogiri.rb:28:in `<top (required)>'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara.rb:2:in `require'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247/gems/capybara-2.1.0/lib/capybara.rb:2:in `<top (required)>'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
from /Users/Jimbo/.rvm/gems/ruby-2.0.0-p247@global/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'

Answer 1

I suggest you first uninstall Nokogiri using:

sudo gem uninstall nokogiri

Then install Nokogiri using rubygems:

gem install nokogiri

If that doesn't work, there's an open issue on Nokogiri to support libxml 2.9.0 and later. There's a libxml2-2.9.1 branch that was started in preparation for the next release of libxml2.

Then try pulling from that branch in your Gemfile like this:

gem "nokogiri", github: "sparklemotion/nokogiri", branch: "libxml2-2.9.1"

or install an older version of libxml2.

If that still doesn't work you may also want to try the suggestions here: What to do if libxml2 is being a jerk.