An error occurred while installing nokogiri (1.6.0), and Bundler cannot continue.Make sure that gem install nokogiri -v '1.6.0' succeeds before bundling. $ brew install libxml2 libxslt $ brew link libxml2 libxslt $ wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.13.1.tar.gz (※直接URLを叩いてtar.gzファイルをDLし、/usr/local/Cellar/libiconv/に置きました) $ tar xvfz libiconv-1.13.1.tar.gz $ cd libiconv-1.13.1 $ ./c