[Rails][CentOS]gemのnokogiriインストールでエラー ERROR: Error installing nokogiri:

By On 2015年5月6日 · Leave a Comment · In CentOS, Rails

はじめに

bundle installでgemのnokogiriがinstallできていませんとエラーがでました。
直接nokogiriをinstall指定していませんでした。※これはインストールするgem内でnokogiriを使っているgemがあったのかと思います。
その後、nokogiriをyumでインストールしましたがエラーが出たため、対応策をメモしておきます。

エラーの改善について

詳細エラー内容

インストール実行

$ sudo yum install nokogiri

エラー内容

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

/home/vagrant/.rbenv/versions/2.2.1/bin/ruby -r ./siteconf20150506-10401-826g5c.rb extconf.rb
checking if the C compiler accepts … yes
Building nokogiri using packaged libraries.
checking for gzdopen() in -lz… yes
checking for iconv… yes
************************************************************************
IMPORTANT NOTICE:

Building Nokogiri with a packaged version of libxml2-2.9.2
with the following patches applied:
– 0001-Revert-Missing-initialization-for-the-catalog-module.patch
– 0002-Fix-missing-entities-after-CVE-2014-3660-fix.patch

Team Nokogiri will keep on doing their best to provide security
updates in a timely manner, but if this is a concern for you and want
to use the system library instead; abort this installation process and
reinstall nokogiri as follows:

gem install nokogiri — –use-system-libraries
[--with-xml2-config=/path/to/xml2-config]
[--with-xslt-config=/path/to/xslt-config]

If you are using Bundler, tell it to use the option:

bundle config build.nokogiri –use-system-libraries
bundle install

Note, however, that nokogiri is not fully compatible with arbitrary
versions of libxml2 provided by OS/package vendors.
************************************************************************
Extracting libxml2-2.9.2.tar.gz into tmp/x86_64-unknown-linux-gnu/ports/libxml2/2.9.2… OK
Running patch with /home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/nokogiri-1.6.6.2/ports/patches/libxml2/0001-Revert-Missing-initialization-for-the-catalog-module.patch…
Running ‘patch’ for libxml2 2.9.2… ERROR, review ‘/home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/nokogiri-1.6.6.2/ext/nokogiri/tmp/x86_64-unknown-linux-gnu/ports/libxml2/2.9.2/patch.log’ to see what happened.
*** 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/vagrant/.rbenv/versions/2.2.1/bin/$(RUBY_BASE_NAME)
–help
–clean
–use-system-libraries
–enable-static
–disable-static
–with-zlib-dir
–without-zlib-dir
–with-zlib-include
–without-zlib-include=${zlib-dir}/include
–with-zlib-lib
–without-zlib-lib=${zlib-dir}/lib
–enable-cross-build
–disable-cross-build
/home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/mini_portile-0.6.2/lib/mini_portile.rb:279:in `block in execute’: Failed to complete patch task (RuntimeError)
from /home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/mini_portile-0.6.2/lib/mini_portile.rb:271:in `chdir’
from /home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/mini_portile-0.6.2/lib/mini_portile.rb:271:in `execute’
from extconf.rb:311:in `block in patch’
from extconf.rb:308:in `each’
from extconf.rb:308:in `patch’
from /home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/mini_portile-0.6.2/lib/mini_portile.rb:108:in `cook’
from extconf.rb:278:in `block in process_recipe’
from extconf.rb:177:in `tap’
from extconf.rb:177:in `process_recipe’
from extconf.rb:475:in `

‘

extconf failed, exit code 1

Gem files will remain installed in /home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/gems/nokogiri-1.6.6.2 for inspection.
Results logged to /home/vagrant/.rbenv/versions/2.2.1/lib/ruby/gems/2.2.0/extensions/x86_64-linux/2.2.0-static/nokogiri-1.6.6.2/gem_make.out

対応策

エラー内に改善案が書いてありました。
必要なライブラリをインストールし再度nokogiriを指定方法によりインストールします。これで手元環境ではエラーなく成功しました。

$ sudo yum -y install libxml2 libxslt libxml2-devel libxslt-devel
$ gem install nokogiri -- --use-system-libraries

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