[Bug 1698122] Re: Update-Manager and AptDeamon crashes - Ubuntu 14.04

[Launchpad Bug Tracker]

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

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

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https://bugs.launchpad.net/bugs/1698122

Title:
  Update-Manager and AptDeamon crashes - Ubuntu 14.04

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  update-manager, when launched, prints some stacktrace errors but keeps
  working. However, when I push 'install' button it shows only an empty
  gray frame and prints other errors, ending in:

  <i>dbus.exceptions.DBusException:
  org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name
  'org.debian.apt': no such name</i>

  I found this similar (although not identical) problem:
  https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1539847

  I found other similar problems online and in most of the cases it was suggested to do and apt-get update, dist-upgrade and/or upgrade or to reinstall different packages through aptitude (mainly aptdaemon, dbus or update-manager)
  However, after trying this solutions nothing changed.

  Someone said that they had found a temporary solution running 'sudo
  aptd' in another terminal window and then opening 'update-manager'.
  Trying this solution and running 'sudo aptd' I get the following stack
  trace:

  
  Traceback (most recent call last):
    File "/usr/sbin/aptd", line 37, in <module>
      import aptdaemon.core
    File "/usr/lib/python3/dist-packages/aptdaemon/core.py", line 66, in <module>
      from .worker import (
    File "/usr/lib/python3/dist-packages/aptdaemon/worker.py", line 56, in <module>
      import pkg_resources
    File "/usr/local/lib/python3.4/dist-packages/pkg_resources/__init__.py", line 72, in <module>
      import packaging.requirements
    File "/usr/local/lib/python3.4/dist-packages/packaging/requirements.py", line 59, in <module>
      MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
  TypeError: __call__() missing 1 required positional argument: 'name'

  
  I tried reinstalling aptdeamon and python3.4 without results.

  What I expected to happen: update-manager succeded to install packages
  and no stacktrace is printed on the terminal

  System Informations:
  Linux 3.19.0-80-generic #88~14.04.1-Ubuntu x86_64 x86_64 x86_64 GNU/Linux
  Ubuntu 14.04.5 LTS

  Other info:
  apt-get, synaptic packet manager and Ubuntu Softwar Center seem to work properly

  aptdaemon 1.1.1-1ubuntu5.2
  update-manager 1:0.196.23
  python3 3.4.0

  If more informations are needed, I will be happy to provide any.

  Thanks in advance

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