Trying to install digikam 3.1 on Ubuntu 13.04 after upgrade from Ubuntu 12.10

 I recently upgraded Ubuntu 12.10 to 13.04 and this messed up my digikam installation.
I had installed digikam 3.1 on Ubuntu 12.10 following this recipe, which worked out of the box.
    http://dia-scan.blogspot.co.uk/2013/...untu-1204.html

After upgrading to 13.04 the software centre tells me that digikam is not installed. Trying to install digikam via the software centre results in an error - see report

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: digikam (not installed)
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Wed May 1 19:20:50 2013
InstallationDate: Installed on 2013-01-27 (94 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: digikam
UpgradeStatus: Upgraded to raring on 2013-04-26 (5 days ago)