Precise to Quantal: update-manager UI crashes: can't load DistUpgradeViewGtk (No module named vte)

[Elvis Slavić]

Upgrading from Wubi to Quantal causes following errors:

authenticate 'quantal.tar.gz' against 'quantal.tar.gz.gpg'
extracting 'quantal.tar.gz'
can't load DistUpgradeViewGtk (No module named vte)
can't load DistUpgradeViewGtk3 (could not import gobject (error was: ImportError('When using gi.repository you must not import static modules like "gobject". Please change all occurrences of "import gobject" to "from gi.repository import GObject".',)))
can't load DistUpgradeViewKDE (No module named PyQt4.QtCore)

GUI fails and upgrade can't continue.

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1009226

[Elvis Slavić (liquidplay)]

Upgrade from Precise to Quantal (Wubi)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jean-Baptiste Lallement (jibel)]

Main log from a failed attempt

[Tehnick (tehnick)]

Let's look at this repository:
http://extras.ubuntu.com/ubuntu/dists/
Do you see Ubuntu Quantal here?
No.

So just use other mirrors. For example:
http://us.archive.ubuntu.com/ubuntu/dists/
http://de.archive.ubuntu.com/ubuntu/dists/
and etc...

[Tehnick (tehnick)]

Or you could use "precise" branch from "extras.ubuntu.com".
This will avoid errors during updating list of packages.

[Jean-Baptiste Lallement (jibel)]

Missing repositories are not the problem, they are just ignored. The problem is that modules required by update-manager are missing in python3:

for example:
This works:
$ python2 -c "import vte"
but this doesn't
$ python3 -c "import vte"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: No module named vte

[Tehnick (tehnick)]

Oh, I see now.

[Alex Mayorga (alex-mayorga)]

alex-mayorga@VPCCW1FFXL:~$ update-manager -d
authenticate 'quantal.tar.gz' against 'quantal.tar.gz.gpg'
extracting 'quantal.tar.gz'
can't load DistUpgradeViewGtk3 (Failed to open file '/tmp/update-manager-6L6Nxn/DistUpgrade.ui': No such file or directory)

alex-mayorga@VPCCW1FFXL:~$ sudo update-manager -d
authenticate 'quantal.tar.gz' against 'quantal.tar.gz.gpg'
extracting 'quantal.tar.gz'
can't load DistUpgradeViewGtk3 (Failed to open file '/tmp/update-manager-fMGYlx/DistUpgrade.ui': No such file or directory)
/usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
  import gobject._gobject
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: specified class size for type `PyGtkGenericCellRenderer' is smaller than the parent type's `GtkCellRenderer' class size
  from gtk import _gtk
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/__init__.py:40: Warning: g_type_get_qdata: assertion `node != NULL' failed
  from gtk import _gtk

Is this the same bug or another one?

[Colin Watson (cjwatson)]

That's a different bug.

[Tylor Steinberger (xpandaxloverx167)]

This is also affecting me.

[jtlb (jt-lb)]

As of today, ./dist-upgrade.py --frontend=DistUpgradeViewKDE works for me but the GTK one still fails

[Jean-Baptiste Lallement (jibel)]

I'm closing this report. It is fixed with version 0.173 or ubuntu-release-upgrader