下記エラーが表示された場合は$ vagrant plugin install vagrant-librarian-puppet Installing the ‘vagrant-librarian-puppet’ plugin. This can take a few minutes… Bundler, the underlying system Vagrant uses to install plugins, reported an error. The error is shown below. These errors are usually caused by misconfigured plugin installations or transient network issues. The error from Bundler is:

An error occurred while installing nokogiri (1.6.5), and Bundler cannot continue. Make sure that gem install nokogiri -v '1.6.5' succeeds before bundling.

普通にnokogiriをインストールしても対応できないので

$ gem install –install-dir ~/.vagrant.d/gems nokogiri -v ‘1.6.5’

でインストールしてあげればエラーが解消できます。