Steps to reproduce:

1) Install Eclipse indigo
2) Install the latest nightly build from http://download.jboss.org/jbosstools/builds/nightly/trunk/latest/all/
3) Create the latest dev environment (devenv_215 ami-eb0ed982) and add public DNS name into libra_server option in file /etc/openshift/express.conf
4) in Eclipse: File -> New -> Other -> OpenShift -> OpenShift Express Application
5) Provide your access credentials and Click Next
6) Create your domain if you haven't done already
7) Create a new application

Result:

An error pop-up is shown and you cannot select the type of your OpenShift Express application. The error message is the following:

"

Could not load cartridges
Could not list embeddable cartridges at "https://ec2-107-22-10-234.compute-1.amazonaws.com/broker/cartlist"

"

The URL above says:

Routing Error

No route matches "/broker/cartlist"