vagrant up command fails for openstreetmap-website

[IOOI-SqAR]

When trying to follow the instructions given on https://github.com/openstreetmap/openstreetmap-website/blob/master/VAGRANT.md the vagrant up command fails like this:

==> default: Gem::InstallError: nokogiri requires Ruby version >= 2.1.0.
==> default: An error occurred while installing nokogiri (1.7.0), and Bundler cannot
==> default: continue.
==> default: Make sure that gem install nokogiri -v '1.7.0' succeeds before bundling.
The SSH command responded with a non-zero exit status. Vagrant
assumes that this means the command failed. The output for this command
should be in the log above. Please read the output to determine what
went wrong.

when I look further up in the vagrant output I can see that ruby2.0 (2.0.0.484-1ubuntu2.2) was installed before. I attached the full vagrant output:
openstreetmap-website vagrant up.0.log.txt

[tomhughes]

Well as it says, you need ruby 2.1 not 2.0.

[tomhughes]

I guess this probably needs the Vagrant file changing to a new image but I know nothing about the vagrant stuff.

[IOOI-SqAR]

This now works as expected!