Unity-lens-photos crashes on start, photos in dash is empty

[John Kuang]

My photo lens in dash is always empty, despite having many tagged photos in shotwell, and with facebook and picasa linked. I get the following error message when I try to start it manually from terminal.

jkuang@momo:~$ /usr/lib/unity-lens-photos/unity-lens-photos
/usr/lib/python3/dist-packages/gi/_gobject/__init__.py:279: Warning: attempting to add an interface (UnityMergeStrategy) to class (__main__+Merger) after class_init
  type_register(cls, namespace.get('__gtype_name__'))
Traceback (most recent call last):
  File "/usr/lib/unity-lens-photos/unity-lens-photos", line 103, in <module>
    class Merger (GObject.Object, Unity.MergeStrategy):
  File "/usr/lib/python3/dist-packages/gi/types.py", line 230, in __init__
    cls._setup_vfuncs()
  File "/usr/lib/python3/dist-packages/gi/types.py", line 118, in _setup_vfuncs
    for vfunc_name, py_vfunc in cls.__dict__.items():
  File "/usr/lib/python3.2/warnings.py", line 18, in showwarning
    file.write(formatwarning(message, category, filename, lineno, line))
  File "/usr/lib/python3.2/warnings.py", line 25, in formatwarning
    line = linecache.getline(filename, lineno) if line is None else line
  File "/usr/lib/python3.2/linecache.py", line 15, in getline
    lines = getlines(filename, module_globals)
  File "/usr/lib/python3.2/linecache.py", line 41, in getlines
    return updatecache(filename, module_globals)
  File "/usr/lib/python3.2/linecache.py", line 81, in updatecache
    stat = os.stat(fullname)
RuntimeError: Couldn't find GType of implementor of interface UnityMergeStrategy. Forgot to set __gtype_name__?

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: unity-lens-photos 0.9-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
Uname: Linux 3.5.0-26-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Wed Feb 27 19:06:41 2013
InstallationDate: Installed on 2011-11-19 (466 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: unity-lens-photos
UpgradeStatus: Upgraded to quantal on 2012-10-22 (128 days ago)

[David Callé (davidc3)]

Thank you for the report,
what version of python-gobject do you have installed?

You can find out with:
$ apt-cache policy python-gobject

[John Kuang (xiphosurus)]

jkuang@momo:~$ apt-cache policy python-gobject
python-gobject:
  Installed: 3.4.0-1ubuntu0.1
  Candidate: 3.4.0-1ubuntu0.1
  Version table:
 *** 3.4.0-1ubuntu0.1 0
        500 http://us.archive.ubuntu.com/ubuntu/ quantal-updates/main
amd64 Packages
        100 /var/lib/dpkg/status
     3.4.0-1 0
        500 http://us.archive.ubuntu.com/ubuntu/ quantal/main amd64
Packages
        500 http://archive.ubuntu.com/ubuntu/ quantal/main amd64
Packages

The strange thing is that everything works on my desktop, which have
identical versions (photo lens and gobject). The problem happens only
on my laptop. I have tried purging and reinstalling unity-lens-photos.
but no diff. Are there other steps that I can take to reset it?

On Thu 28 Feb 2013 05:07:25 AM CST, David Callé wrote:
> Thank you for the report,
> what version of python-gobject do you have installed?
>
> You can find out with:
> $ apt-cache policy python-gobject
>

[Michal Hruby (mhr3)]

More importantly what version of libglib2.0-0 do you have?

[John Kuang (xiphosurus)]

Ah this should be the problem.

libglib2.0-0:
  Installed: 2.35.4-0ubuntu5~webupd8~quantal

On Thu 28 Feb 2013 10:00:03 AM CST, Michal Hruby wrote:
> More importantly what version of libglib2.0-0 do you have?
>
> ** Changed in: unity-lens-photos (Ubuntu)
> Status: New => Incomplete
>

[Martin Pitt (pitti)]

Michal: see the Dependencies.txt attachment (all hail apport):

libglib2.0-0 2.35.4-0ubuntu5~webupd8~quantal [origin: LP-PPA-webupd8team-gvfs-libmtp]
libglib2.0-data 2.35.4-0ubuntu5~webupd8~quantal [origin: LP-PPA-webupd8team-gvfs-libmtp]

I'm afraid quantal's pygobject doesn't yet work with glib 2.35.x, you would have to update pygobject to 3.7.x for this.

[John Kuang (xiphosurus)]

I downgraded glib back to 2.34.1-1ubuntu1 and everything is working
again. Thanks for the help!

On Thu 28 Feb 2013 10:38:43 AM CST, Martin Pitt wrote:
> Michal: see the Dependencies.txt attachment (all hail apport):
>
> libglib2.0-0 2.35.4-0ubuntu5~webupd8~quantal [origin: LP-PPA-webupd8team-gvfs-libmtp]
> libglib2.0-data 2.35.4-0ubuntu5~webupd8~quantal [origin: LP-PPA-webupd8team-gvfs-libmtp]
>
> I'm afraid quantal's pygobject doesn't yet work with glib 2.35.x, you
> would have to update pygobject to 3.7.x for this.
>
> ** Changed in: unity-lens-photos (Ubuntu)
> Status: Incomplete => Invalid
>