I am a beginner in OPNFV and I am just trying to install Arno Fuel in virtualbox following this slide. But I have a problem during installation. In slide(page 14), I have an error in tab Network Setup. No matter what value I set, it will show that "Module Network Setup failed to save." when I save changes. And I try to set configuration via DHCP, it still shows error message.
I spend much time on it. If I get the answer in details, I will be very happy.