问题
Mac users, see: Mac user and getting WARNING: Nokogiri was built against LibXML version 2.7.8, but has dynamically loaded 2.7.3
I'm using linux (openSUSE 12.3) and running nokogiri -v shows:
WARNING: Nokogiri was built against LibXML version 2.8.0, but dynamically loaded 2.9.0
# Nokogiri (1.6.0)
---
warnings:
- Nokogiri was built against LibXML version 2.8.0, but dynamically loaded 2.9.0
nokogiri: 1.6.0
ruby:
version: 2.0.0
platform: x86_64-linux
description: ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux]
engine: ruby
libxml:
binding: extension
source: packaged
libxml2_path: /home/william/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/ports/x86_64-suse-linux/libxml2/2.8.0
libxslt_path: /home/william/.rvm/gems/ruby-2.0.0-p247/gems/nokogiri-1.6.0/ports/x86_64-suse-linux/libxslt/1.1.26
compiled: 2.8.0
loaded: 2.9.0
回答1:
The implicit question here seems to be "why am I getting this warning, and what can I do about it?"
You are getting the warning because Nokogiri was built (it is a largely native-extension gem, requiring compilation) against LibXML version 2.8.0, and your system has since upgraded LibXML to version 2.9.0.
This is a warning, not at error -- in many cases, Nokogiri will continue to work fine with a newer version of LibXML than it was built against.
If you run into problems or just want to be on the safe side, rebuilding Nokogiri will solve the issue -- it will be built against the version of LibXML currently installed.
来源：https://stackoverflow.com/questions/17396941/on-linux-how-can-i-resolve-warning-nokogiri-was-built-against-libxml-version-2