Installing the Zerigo Addon causes an Application Error

Question

Just went to add the Zerigo addon to a new app in the European region on Heroku, but it fails:

From command line:

$ heroku addons:add zerigo_dns:basic

Gets me:

Adding zerigo_dns:basic on unwalked... failed ! Application error

And trying to install from the addons panel gets me:

Answer 1

The Zerigo add-on is currently only available in the US Region.