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I can't figure out how to fix this error. I install libxml2 and nokogiri is also installed properly.

Building native extensions.  This could take a while...
ERROR:  Error installing fog:
    ERROR: Failed to build gem native extension.

    /usr/bin/ruby extconf.rb
checking for libxml/parser.h... no
libxml2 is missing.  please visit http://nokogiri.org/tutorials/installing_nokogiri.html for help with installing dependencies.
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:

Gem files will remain installed in /usr/lib64/ruby/gems/1.8/gems/nokogiri-1.5.10 for inspection.
Results logged to /usr/lib64/ruby/gems/1.8/gems/nokogiri-1.5.10/ext/nokogiri/gem_make.out
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migrated from stackoverflow.com Jun 22 '13 at 12:23

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What operating system are you on? How did you install libxml2? There are some instructions that may help here: nokogiri.org/tutorials/installing_nokogiri.html –  geemus Jun 21 '13 at 20:23

1 Answer 1

You need to install libxml-devel packages. Every time you see an message like this, if due missing header files from the dependencies. In the installation process it's required to compile native code (C/C++) and to do it the header files are needed.

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