[Bug 1633695] Re: upgrade to 16.10 fails

[Ads20000]

I think the relevant error is this one: AttributeError: 'ReleaseNotesViewerWebkit' object has no attribute '_on_navigation_policy_decision_requested'
However, because you don't have all the logs attached to this report, please could you refile the bug (with the same log, but pointing out that that last line is probably the error in question)? I think that will make your report more complete.

** Package changed: ubuntu-meta (Ubuntu) => update-manager (Ubuntu)

** Changed in: update-manager (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1633695

Title:
  upgrade to 16.10 fails

Status in update-manager package in Ubuntu:
  Invalid

Bug description:
  Attempting to upgrade 16.04 -> 16.10 fails with cryptic error:

  sudo update-manager

  /usr/bin/update-manager:28: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0
  ') before import to ensure that the right version gets loaded.
    from gi.repository import Gtk
  /usr/lib/python3/dist-packages/UpdateManager/UnitySupport.py:29: PyGIWarning: Dbusmenu was imported without specifying a version
   first. Use gi.require_version('Dbusmenu', '0.4') before import to ensure that the right version gets loaded.
    from gi.repository import Dbusmenu, Unity
  /usr/lib/python3/dist-packages/UpdateManager/UnitySupport.py:29: PyGIWarning: Unity was imported without specifying a version first. Use gi.require_version('Unity', '7.0') before import to ensure that the right version gets loaded.
    from gi.repository import Dbusmenu, Unity
  Проверка наличия нового релиза Ubuntu
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py:23: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
    from gi.repository import Gtk, Gdk
  /usr/lib/python3/dist-packages/DistUpgrade/ReleaseNotesViewerWebkit.py:36: PyGIWarning: WebKit was imported without specifying a version first. Use gi.require_version('WebKit', '3.0') before import to ensure that the right version gets loaded.
    from gi.repository import WebKit
  Traceback (most recent call last):
  Traceback (most recent call last):
    File "/usr/bin/do-release-upgrade", line 165, in <module>
      fetcher.run()
    File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py", line 275, in run
      if not self.showReleaseNotes():
    File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py", line 62, in showReleaseNotes
      res = self._try_show_release_notes_webkit()
    File "/usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcher.py", line 74, in _try_show_release_notes_webkit
      self.new_dist.releaseNotesHtmlUri)
    File "/usr/lib/python3/dist-packages/DistUpgrade/ReleaseNotesViewerWebkit.py", line 48, in __init__
      self._on_navigation_policy_decision_requested)
  AttributeError: 'ReleaseNotesViewerWebkit' object has no attribute '_on_navigation_policy_decision_requested'

  This is xubuntu 16.04 x86_64 with all the latest updates installed.

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