rails c でエラーになったら一瞬で直す
$brew install readline $ ln -s /usr/local/opt/readline/lib/libreadline.dylib /usr/local/opt/readline/lib/libreadline.7.dylib $ bundle install --path vendor/bundle
$brew install readline $ ln -s /usr/local/opt/readline/lib/libreadline.dylib /usr/local/opt/readline/lib/libreadline.7.dylib $ bundle install --path vendor/bundle