Now signing changes and any dsc files...
 signfile ubiquity_2.21.12.dsc Mathieu Trudel-Lapierre <mathieu-tl@ubuntu.com>
gpg: skipped "Mathieu Trudel-Lapierre <mathieu-tl@ubuntu.com>": secret key not available
gpg: /tmp/debsign.FUZeet7S/ubiquity_2.21.12.dsc: clearsign failed: secret key not available
debsign: gpg error occurred!  Aborting....
debuild: fatal error at line 1283:
running debsign failed
bzr: ERROR: The build failed.