Mac user and getting WARNING: Nokogiri was built against LibXML version 2.7.8, but has dynamically loaded 2.7.3

Question

I have done all kinds of research and tried many different things. I know this question has been answered many times, but none of the suggested solutions are working for me.

Answer 1

gem install libxml-ruby helps me

Answer 2

None of this worked for me.

I had libxml2 installed at a later version (2.7.8) with brew. This caused nokogiri to compile against it and the later problems. Solution, remove it, then build, then install if desired.

Here's what worked:

• brew uninstall libxml2 (if previously installed)
• gem uninstall nokogiri
• gem install nokogiri
• brew install libxml2 (optional)

Answer 3

Bundler has options to set the default build locations. So for instance, with libxml2 installed via macports:

$ bundle config build.nokogiri --with-xml2-include=/opt/local/include/libxml2 --with-xml2-lib=/opt/local/lib --with-xslt-dir=/opt/local

After doing this and bundle install, the warning went away.

There's also some helpful examples for setting build options on the nokogiri wiki.

Answer 4

If you have this message and your nokogiri is out-of-date with the version available from the gem source, simply run bundle update nokogiri to get the new code and recompile. Your error should go away.