I develop Ruby On Rails projects in Ubuntu-based virtual machines.
A few days ago, Canonical released Ubuntu 13.04.
After upgrading to this new release, I got the following warning when running my rails test suite:
$ rake
WARNING: Nokogiri was built against LibXML version 2.7.8, but has dynamically loaded 2.9.0
...
I invoked the nokogiri command for more information:
$ nokogiri -v
WARNING: Nokogiri was built against LibXML version 2.7.8, but has dynamically loaded 2.9.0
# Nokogiri (1.5.9)
---
warnings:
- Nokogiri was built against LibXML version 2.7.8, but has dynamically loaded 2.9.0
nokogiri: 1.5.9
ruby:
version: 2.0.0
platform: i686-linux
description: ruby 2.0.0p0 (2013-02-24 revision 39474) [i686-linux]
engine: ruby
libxml:
binding: extension
compiled: 2.7.8
loaded: 2.9.0
Ok, it seems that nokogiri was compiled with libxml 2.7.8 but the system currently only provides a new version of libxml, namely libxml 2.9.0.
This issue can be fixed by reinstalling nokogiri as the new installation will be compiled against the new LibXML version.
$ gem uninstall nokogiri # remove nokogiri
$ bundle # if you use bundler
$ gem install nokogiri # if you do not use bundler
As you can see, the warning is now gone.
$ nokogiri -v
# Nokogiri (1.5.9)
---
warnings: []
nokogiri: 1.5.9
ruby:
version: 2.0.0
platform: i686-linux
description: ruby 2.0.0p0 (2013-02-24 revision 39474) [i686-linux]
engine: ruby
libxml:
binding: extension
compiled: 2.9.0
loaded: 2.9.0
Please leave a comment if you found this guide helpful!
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