Vagrant cannot install nokogiri-dependent plugins

Question

I\'m trying to install the rackspace plugin for vagrant (1.5.1):

vagrant plugin install vagrant-rackspace

But it complains

Answer 1

I'm on OSX Mavericks and this worked for me:

Set as environment property:

NOKOGIRI_USE_SYSTEM_LIBRARIES=1 

Then install as usual:

vagrant plugin install vagrant-rackspace