gnome-sudoku crashed with TypeError in make_saved_game_model(): not all arguments converted during string formatting

Crash on gnome-sudoku startup.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: gnome-sudoku 1:3.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic 3.0.22
Uname: Linux 3.0.0-17-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Wed Mar 28 03:14:23 2012
ExecutablePath: /usr/games/gnome-sudoku
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20100224.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: python /usr/games/gnome-sudoku
PythonArgs: ['/usr/games/gnome-sudoku']
SourcePackage: gnome-games
Title: gnome-sudoku crashed with TypeError in make_saved_game_model(): not all arguments converted during string formatting
UpgradeStatus: Upgraded to precise on 2012-03-08 (19 days ago)
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