xUbuntu_12.04 unresolvable nothing provides python-gamin

Error: xUbuntu_12.04 unresolvable nothing provides python-gamin

It used to work in earlier releases.

https://build.opensuse.org/package/show/home:rickrich:gnome-manual-duplex/gnome-manual-duplex#

What do I do?

A real 12.04 says:

$ cat /etc/issue
Ubuntu 12.04 LTS
\l

$ dpkg -l | grep gamin
ii gamin 0.1.10-4 File and directory monitoring system
ii libgamin0 0.1.10-4 Client library for the gamin file and directory monitoring system
ii python-gamin 0.1.10-4 Python binding for the gamin client library

Note: Debian 7.0 works, but xUbuntu doesn’t work (python-gamin). Weird!