Issues

From Install and configure Vagrant on Ubuntu Oneiric 11.10:

Invalid gemspec in [/var/lib/gems/1.8/specifications/json-1.5.4.gemspec]:
invalid date format in specification: "2011-08-31 00:00:00.000000000Z"

Edit /var/lib/gems/1.8/specifications/json-1.5.4.gemspec and remove 00:00:00.000000000Z on the s.date line.