Problem with installing nokogiri

[lukaskurz]

Problem

When trying to run bundle install, it fails at installing nokogiri.

Fetching nokogiri 1.6.8.1 (x64-mingw32)
Installing nokogiri 1.6.8.1 (x64-mingw32)
Gem::InstallError: nokogiri requires Ruby version < 2.4, >= 1.9.2.
An error occurred while installing nokogiri (1.6.8.1), and Bundler cannot
continue.
Make sure that `gem install nokogiri -v '1.6.8.1'` succeeds before bundling.

In Gemfile:
  nokogiri

On windows, there are no more installers for ruby 1.9.* found, on the ruby website. I don't if that's also the case for linux.

Proposal

Change the nokogiri version to something take works with newer versions of ruby and check if everything else works with ruby >2.0.0, since this has probably always been executed with an older ruby version.