The short version: vagrant plugin expunge --reinstall The long version: Vagrant 2.0.3 seems to have changed something from 2.0.2 in terms of its embedded version of nokogiri. This causes errors when running commands such as vagrant status. Here's an example of the kind of error you may see: /opt/vagrant/embedded/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require': incompatible library version - /Users/kevin/.vagrant.d/gems/2.4.3/gems/nokogiri-1.8.2/lib/nokogiri/nokogiri.bundle [...]
