Nokogiri installation fails -libxml2 is missing

Question

I always worked my way around Nokogiri installation issues by following the documentation in the \"Installing Nokogiri\" tutorial.

But this time, even after installi

Answer 1

gem install nokogiri -- --with-xml2-include=/usr/local/Cellar/libxml2/2.7.8/include/libxml2 --with-xml2-lib=/usr/local/Cellar/libxml2/2.7.8/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.26 --with-iconv-include=/usr/local/Cellar/libiconv/1.14/include --with-iconv-lib=/usr/local/Cellar/libiconv/1.14/lib

Change your version with it.

Answer 2

Have you tried installing libxml2? Not from rubygems, but via the standard install process for your operating system. On Ubuntu/Debian for example:

sudo apt-get install libxml2

On any recent version of OS X it should already be installed.

Answer 3

First, install the dependencies:

sudo apt-get install libxslt-dev libxml2-dev

If you still receive the error, you may be missing a compiler toolchain:

sudo apt-get install build-essential

You'll get the "libxml2 is missing" error if you're missing a build toolchain (at least I ran into this issue on Debian Lenny).

The Nokogiri build test-compiles a libxml2 header file to verify that it is present, however, it doesn't differentiate between "libxml2 is missing" and "a compiler to test libxml2 is missing".

Answer 4

I was able to get this installed with Chocolatey, Windows 8.1 x64, and DevKit x64.

cinst libxml2
cinst libxslt
cinst libiconv

gem install nokogiri -- 
  --with-xml2-include=C:\Chocolatey\lib\libxml2.2.7.8.7\build\native\include 
  --with-xml2-lib=C:\Chocolatey\lib\libxml2.redist.2.7.8.7\build\native\bin\v110\x64\Release\dynamic\cdecl 
  --with-iconv-include=C:\Chocolatey\lib\libiconv.1.14.0.11\build\native\include 
  --with-iconv-lib=C:\Chocolatey\lib\libiconv.redist.1.14.0.11\build\native\bin\v110\x64\Release\dynamic\cdecl 
  --with-xslt-include=C:\Chocolatey\lib\libxslt.1.1.28.0\build\native\include 
  --with-xslt-lib=C:\Chocolatey\lib\libxslt.redist.1.1.28.0\build\native\bin\v110\x64\Release\dynamic

You'll have to verify the version number in the paths are correct.

You may possibly need to add Microsoft's NuGet repository:

-Source "https://go.microsoft.com/fwlink/?LinkID=230477"

Answer 5

I just had the same issue on Fedora 13. After a frustrating and unsuccessful search to make

gem install nokogiri

work for me, I was able to install it and get around the libxml2 error via yum.

Simply install the gem via yum instead of the gem command:

su
yum search rubygem-nokogiri   #this find the proper package name
yum install rubygem-nokogiri.i686

This helped me find the right answer for Fedora and, as I am using RVM for Ruby package management,

yum install rubygem-nokogiri

will pull in all the Ruby gems and dependencies into the system, not into my RVM environment, and in my experience that leads to a very frustrating and humbling experience.

So, taking your find of the Nokogiri yum gem you can use:

yum provides  rubygem-nokogiri

and get a list of the dependencies for rubygem-Nokogiri which showed me the libraries that were missing. After that I ran:

yum install libxml2-devel libxslt libxslt-devel

Now Nokogiri compiles in Fedora and Nokogiri installs. D'oh!, we need the headers to compile Nokogiri from the devel libraries.

Answer 6

In Mac OS X (Mavericks) if none of these solutions work, try:

ARCHFLAGS="-arch x86_64" gem install nokogiri

or

ARCHFLAGS="-arch i386" gem install nokogiri

depending on your system's architecture.