operational/network-topology:network-topology/topology/netvirt:1 not existing

In ODL Boron, after installing odl-ovdsb-openstack feature, I see several errors in karaf.log related to Netvirt and when querying the API: "/operational/network-topology:network-topology/" I get this: {"network-topology":{"topology":[

,

]}}. There is no netvirt section which is strange.

This is the errors we see in karaf.log:

http://pastebin.com/YbjUB06a

http://pastebin.com/9JHzqrpB