I was thinking of trying out quickly in my Ubuntu 10.10 Maverick Meerkat and tried:
quickly create ubuntu-application foo
in the terminal, but I got this:
ERROR: No create command found. Aborting.
I then found out that I had not installed the package quickly-ubuntu-template. I did it and it solved my problem. If you already have that installed and are still getting the problem, view comments in the bug report: https://bugs.launchpad.net/quickly/+bug/519222/
Hope this helps.