Here are several related threads from support sites: https://askubuntu.com/questions/620137/do-release-upgrade-is-failing- silently-first-steps-to-troubleshoot
http://chiedi.ubuntu-it.org/questions/36248/ubuntu-software-center-non- parte https://askubuntu.com/questions/607063/ubuntu-software-center-is-not- working-on-14-10 (possibly the same problem) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to python-apt in Ubuntu. https://bugs.launchpad.net/bugs/1385689 Title: ubuntu-bug, software-center and update-manager crashing Status in python-apt package in Ubuntu: Confirmed Bug description: Just yesterday I updated from 14.04 to 14.10 and noticed, that the update-manager shows a Stop-sign in the notification bar. Tried to open it via the launcher, no success. Then I tried starting the update-manager via console: dsfsfs@linux:/usr/lib/python3/dist-packages$ update-manager Traceback (most recent call last): File "/usr/bin/update-manager", line 38, in <module> from UpdateManager.UpdateManager import UpdateManager File "/usr/lib/python3/dist-packages/UpdateManager/UpdateManager.py", line 36, in <module> import apt_pkg ImportError: /usr/lib/python3/dist-packages/apt_pkg.cpython-34m-x86_64-linux-gnu.so: undefined symbol: _ZN13pkgSrcRecords4StepEv dsfsfs@linux:/usr/lib/python3/dist-packages$ Tried the same with software-center: dsfsfs@linux:/usr/lib/python3/dist-packages$ software-center ERROR:root:DebFileApplication import Traceback (most recent call last): File "/usr/share/software-center/softwarecenter/db/__init__.py", line 4, in <module> from debfile import DebFileApplication, DebFileOpenError File "/usr/share/software-center/softwarecenter/db/debfile.py", line 21, in <module> from apt.debfile import DebPackage File "/usr/lib/python2.7/dist-packages/apt/__init__.py", line 23, in <module> import apt_pkg ImportError: /usr/lib/python2.7/dist-packages/apt_pkg.so: undefined symbol: _ZN13pkgSrcRecords4StepEv Speicherzugriffsfehler dsfsfs@linux:/usr/lib/python3/dist-packages$ And, last but not least, after reading the FAQs on how to file in a bug, I tried to run ubuntu-bug, which gave me this: dsfsfs@linux:/usr/lib/python3/dist-packages$ ubuntu-bug Traceback (most recent call last): File "/usr/share/apport/apport-gtk", line 24, in <module> import apport File "/usr/lib/python3/dist-packages/apport/__init__.py", line 5, in <module> from apport.report import Report File "/usr/lib/python3/dist-packages/apport/report.py", line 30, in <module> import apport.fileutils File "/usr/lib/python3/dist-packages/apport/fileutils.py", line 23, in <module> from apport.packaging_impl import impl as packaging File "/usr/lib/python3/dist-packages/apport/packaging_impl.py", line 20, in <module> import apt File "/usr/lib/python3/dist-packages/apt/__init__.py", line 23, in <module> import apt_pkg ImportError: /usr/lib/python3/dist-packages/apt_pkg.cpython-34m-x86_64-linux-gnu.so: undefined symbol: _ZN13pkgSrcRecords4StepEv dsfsfs@linux:/usr/lib/python3/dist-packages$ Please help. Thanks in advance To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python-apt/+bug/1385689/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
