Installation issue

[donbarthel]

vagrant plugin install vagrant-librarian-chef
gives:
Net::HTTPNotFound: No gems found matching "vagrant-vmware-workstation" "2.3.3" nil

(I'm running with VirtualBox 4.3.12 and vagrant 1.5.2 on OS/X.)

Then I did a 'vagrant up' and after a fairly long bit of processing:
[2014-05-22T16:39:38+00:00] ERROR: Running exception handlers
[2014-05-22T16:39:38+00:00] ERROR: Exception handlers complete
[2014-05-22T16:39:38+00:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
[2014-05-22T16:39:38+00:00] ERROR: You must specify at least one cookbook repo path
[2014-05-22T16:39:38+00:00] FATAL: Chef::Exceptions::ChildConvergeError: Chef run process exited unsuccessfully (exit code 1)
Chef never successfully completed! Any errors should be visible in the
output above. Please fix your recipes so that they properly complete.