nokogiri安装错误处理

administrator@ubuntu:~/store$ gem source
*** CURRENT SOURCES ***

http://ruby.taobao.org
administrator@ubuntu:~/store$ gem install nokogiri
Building native extensions.  This could take a while...
Successfully installed nokogiri-1.6.0
1 gem installed
Installing ri documentation for nokogiri-1.6.0...
Installing RDoc documentation for nokogiri-1.6.0...
administrator@ubuntu:~/store$ gem install nokogiri -v '1.5.10'
Building native extensions.  This could take a while...
ERROR:  Error installing nokogiri:
ERROR: Failed to build gem native extension.

        /home/administrator/.rvm/rubies/ruby-1.9.3-p448/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:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/home/administrator/.rvm/rubies/ruby-1.9.3-p448/bin/ruby
--with-zlib-dir
--without-zlib-dir
--with-zlib-include
--without-zlib-include=${zlib-dir}/include
--with-zlib-lib
--without-zlib-lib=${zlib-dir}/lib
--with-iconv-dir
--without-iconv-dir
--with-iconv-include
--without-iconv-include=${iconv-dir}/include
--with-iconv-lib
--without-iconv-lib=${iconv-dir}/lib
--with-xml2-dir
--without-xml2-dir
--with-xml2-include
--without-xml2-include=${xml2-dir}/include
--with-xml2-lib
--without-xml2-lib=${xml2-dir}/lib
--with-xslt-dir
--without-xslt-dir
--with-xslt-include
--without-xslt-include=${xslt-dir}/include
--with-xslt-lib
--without-xslt-lib=${xslt-dir}/lib
--with-libxslt-config
--without-libxslt-config
--with-pkg-config
--without-pkg-config
--with-libxml-2.0-config
--without-libxml-2.0-config
--with-libiconv-config
--without-libiconv-config


Gem files will remain installed in /home/administrator/.rvm/gems/ruby-1.9.3-p448/gems/nokogiri-1.5.10 for inspection.
Results logged to /home/administrator/.rvm/gems/ruby-1.9.3-p448/gems/nokogiri-1.5.10/ext/nokogiri/gem_make.out

错误log文件：/home/administrator/.rvm/gems/ruby-1.9.3-p448/gems/nokogiri-1.5.10/ext/nokogiri/mkmf.log 内容如下：
=======
ackage configuration for libxslt
cflags: -I/usr/include/libxml2
ldflags:
libs: -lxslt -lxml2

package configuration for libxml-2.0
cflags: -I/usr/include/libxml2
ldflags:
libs: -lxml2

package configuration for libiconv is not found
find_header: checking for libxml/parser.h... -------------------- yes


=======

************解决办法**************
sudo apt-get install libxslt-dev libxml2-dev
再次运行 gem install nokogiri -v '1.5.10'  成功

administrator@ubuntu:~/store$ gem install nokogiri -v '1.5.10'
Building native extensions.  This could take a while...
Successfully installed nokogiri-1.5.10
1 gem installed
Installing ri documentation for nokogiri-1.5.10...
Installing RDoc documentation for nokogiri-1.5.10...