From: Mark Thomas <mark@...>
Date: 2009-11-11T22:55:05+09:00
Subject: Re: Using Nokogiri

On Nov 9, 10:51 pm, 7stud -- <bbxx789_0...@yahoo.com> wrote:
> $ nokogiri -v

cool! I didn't know about that.

> HI.  You're using libxml2 version 2.6.16 which is over 4 years old and
> has
> plenty of bugs.  We suggest that for maximum HTML/XML parsing pleasure,
> you
> upgrade your version of libxml2 and re-install nokogiri.  If you like
> using
> libxml2 version 2.6.16, but don't like this warning, please define the
> constant
> I_KNOW_I_AM_USING_AN_OLD_AND_BUGGY_VERSION_OF_LIBXML2 before requring
> nokogiri.
>
> /usr/local/lib/ruby/gems/1.8/gems/nokogiri-1.4.0/lib/nokogiri/xml/builder.rb:272:
> warning: parenthesize argument(s) for future version
> ---
> nokogiri: 1.4.0
> warnings: []
>
> libxml:
>   compiled: 2.6.16
>   loaded: 2.6.16
>   binding: extension

This is most likely the problem.

Mine reports:
libxml:
  loaded: 2.7.5
  binding: extension
  compiled: 2.7.5

with no warnings.

Can you install a newer version of libxml2? As you can see from
http://xmlsoft.org/news.html, your version dates back to 2004 with
tons of bug fixes (including XPath fixes) since.