hello Łukasz Zemczak i am new in Ubuntu. but i have the same problem. could you help me resolve it?
I have Ubuntu 18.04 and python3.6. And few apps which cant work without solving this bug. При обработке следующих пакетов произошли ошибки: python3 update-notifier-common gnome-shell update-notifier gnome-menus E: Sub-process /usr/bin/dpkg returned an error code (1) i have added -proposed repository. When i try upgrade i have this mistake: installed python3 package post-installation script subprocess returned error exit status 4 and so on. Could you help me please? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to python3-defaults in Ubuntu. https://bugs.launchpad.net/bugs/1768379 Title: python3-minimal should predepend on versioned version of python3-minimal Status in python3-defaults package in Ubuntu: Triaged Status in ubuntu-release-upgrader package in Ubuntu: Invalid Status in python3-defaults source package in Artful: Fix Committed Status in ubuntu-release-upgrader source package in Artful: Invalid Status in python3-defaults source package in Bionic: Fix Committed Status in ubuntu-release-upgrader source package in Bionic: Invalid Status in python3-defaults package in Debian: Fix Released Bug description: [Impact] Release upgrades from Ubuntu 16.04 LTS to either Ubuntu 17.10 or Ubuntu 18.04 LTS can fail if python3-minimial is unpacked before python3.x-minimal so a system won't have a usable python3 symlink. Then upgrades will fail because py3clean, used in prerm scripts of python3 packages, will fail with "not found". [Test Case] 1) on a Ubuntu 16.04 LTS system with python3-apt installed download debs for Ubuntu 17.10 or 18.04 LTS of python3-minimal and python3-apt 2) dpkg --unpack python3-minimal... 3) dpkg --unpack python3-apt... Observe the following Traceback: Preparing to unpack .../python3-apt_1.4.0_beta3build2_amd64.deb ... /var/lib/dpkg/info/python3-apt.prerm: 6: /var/lib/dpkg/info/python3-apt.prerm: py3clean: not found dpkg: warning: subprocess old pre-removal script returned error exit status 127 dpkg: trying script from the new package instead ... /var/lib/dpkg/tmp.ci/prerm: 6: /var/lib/dpkg/tmp.ci/prerm: py3clean: not found dpkg: error processing archive /home/jak/Downloads/python3-apt_1.4.0_beta3build2_amd64.deb (--unpack): subprocess new pre-removal script returned error exit status 127 /var/lib/dpkg/info/python3-apt.postinst: 6: /var/lib/dpkg/info/python3-apt.postinst: py3compile: not found dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 127 With the deb python3-minimal from -proposed you won't be able to unpack python3-minimal without first installing python3.6-minimal. While that may qualify as verification it'd still be good to test unpacking python3-apt. To do that you'll need to install python3.6-minimal from the target release by editing you /etc/apt/sources.list to the new release, running 'apt-get update', and then 'apt-get install python3.6-minimal'. After that's all done you can try steps 2 and 3 from the test case again and you should not receive a Traceback. [Regression Potential] Its possible this could cause or reveal different upgrade failures so some extensive (desktop, cloud, server) upgrade testing should be done. [A Portion of the Original Description (it was a huge blob of failure)] do-release-upgrade -d on my 16.04 LTS unity laptop lead to an install failure: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python3-defaults/+bug/1768379/+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
