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

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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.

After upgrading to Lion I am getting segmentation faults in Ruby. I'm fairly confident it's Nokogiri. So I installed libxml2 via Homebrew. I ran brew link libxml2. Then I reinstalled Nokogiri using that version of the library.

For proof:

$ nokogiri -v
# Nokogiri (1.5.0)
---
warnings: []
nokogiri: 1.5.0
ruby:
  version: 1.9.2
  platform: x86_64-darwin11.0.0
  description: ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-darwin11.0.0]
  engine: ruby
libxml:
  binding: extension
  compiled: 2.7.8
  loaded: 2.7.8

I've already included Nokogiri at the top of my gemfile and I've also required it in my environment file. I have no idea why I am still getting that warning.

Any suggestions or ideas to make sure it's loading the right version libxml2?

libxml2 macos nokogiri ruby
16 Answers

If you have this message and your nokogiri is out-of-date with the version available from the gem source, simply run bundle update nokogiri to get the new code and recompile.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

user_738900

OS: Catalina

Warning: warning nokogiri was built against libxml version 2.9.10 but has dynamically loaded 2.9.4

I followed Michiel de Mare steps, but brew install libxml2 --with-xml2-config failed with invalid option error. So I installed libxml2 and libxslt and took note of the output from both commands.

 brew install libxml2                   
==> Downloading https://homebrew.bintray.com/bottles/libxml2-2.9.10_2.catalina.bottle.tar.gz
Already downloaded: /Users/alberto/Library/Caches/Homebrew/downloads/9ddf5cb90fd16a7eb531e37bb748fd392f30214d9fe1568b2b70d28cc368c8f7--libxml2-2.9.10_2.catalina.bottle.tar.gz
==> Pouring libxml2-2.9.10_2.catalina.bottle.tar.gz
==> Caveats
libxml2 is keg-only, which means it was not symlinked into /usr/local,
because macOS already provides this software and installing another version in
parallel can cause all kinds of trouble.

If you need to have libxml2 first in your PATH run:
  echo 'export PATH="/usr/local/opt/libxml2/bin:$PATH"' >> ~/.zshrc

For compilers to find libxml2 you may need to set:
  export LDFLAGS="-L/usr/local/opt/libxml2/lib"
  export CPPFLAGS="-I/usr/local/opt/libxml2/include"

For pkg-config to find libxml2 you may need to set:
  export PKG_CONFIG_PATH="/usr/local/opt/libxml2/lib/pkgconfig"

==> Summary
  /usr/local/Cellar/libxml2/2.9.10_2: 280 files, 10.6MB


brew install libxslt
==> Downloading https://homebrew.bintray.com/bottles/libxslt-1.1.34.catalina.bottle.tar.gz
==> Downloading from https://d29vzk4ow07wi7.cloudfront.net/cbadecf3186f45754220dff4cbdfbb576882a211d615b52249a4c9d8ba4d7c3a?response-content-disposition=attachment%3Bfil
######################################################################## 100.0%
==> Pouring libxslt-1.1.34.catalina.bottle.tar.gz
==> Caveats
To allow the nokogiri gem to link against this libxslt run:
  gem install nokogiri -- --with-xslt-dir=/usr/local/opt/libxslt

libxslt is keg-only, which means it was not symlinked into /usr/local,
because macOS already provides this software and installing another version in
parallel can cause all kinds of trouble.

If you need to have libxslt first in your PATH run:
  echo 'export PATH="/usr/local/opt/libxslt/bin:$PATH"' >> ~/.zshrc

For compilers to find libxslt you may need to set:
  export LDFLAGS="-L/usr/local/opt/libxslt/lib"
  export CPPFLAGS="-I/usr/local/opt/libxslt/include"

For pkg-config to find libxslt you may need to set:
  export PKG_CONFIG_PATH="/usr/local/opt/libxslt/lib/pkgconfig"

==> Summary
  /usr/local/Cellar/libxslt/1.1.34: 136 files, 2.8MB

And I used those directories when configuring bundle for nokogiri

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

To summarize I executed these steps

gem uninstall nokogiri libxml-ruby
brew update
brew uninstall libxml2
brew install libxml2
brew install libxslt
bundle config build.nokogiri --with-xml2-include=/usr/local/opt/libxml2/include --with-xml2-lib=/usr/local/opt/libxml2/lib --with-xslt-dir=/usr/local/opt/libxslt
bundle install
user_14032580
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