問題 railsチュートリアルをやっておりましたところ、bundle install で nokogiri というgemがインストール出来ない問題に出くわしました。 Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /Users/niwatako/.rbenv/versions/2.0.0-p481/bin/ruby extconf.rb --with-xml2-include=/usr/local/opt/libxml2/include/libxml2 --with-xml2-lib=/usr/local/opt/libxml2/lib --with-xslt-dir=/usr/local/opt/libxslt Building nokogiri using package
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