[Bug 1584416] Re: Conflict between Kactivities and Kactivitymanagerd during upgrade Plasma 5.5 > 5.6 from Kubuntu Backports PPA

[eugenez]

Probably I solved the problem.
1. $ LC_ALL=C sudo apt install kactivitymanagerd plasma-desktop plasma-desktop-data plasma-workspace
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  kde-l10n-engb kde-l10n-ru kde-spectacle kdeplasma-addons-data kwayland-data kwin-addons libkf5coreaddons-data libkf5coreaddons5 libkf5kiocore5 libkf5plasma5
  libkf5screen-bin libkf5screen7 libkf5waylandclient5 libkf5waylandserver5 libpowerdevilcore2 plasma-dataengines-addons plasma-integration plasma-runners-addons
  plasma-wallpapers-addons plasma-widgets-addons
Recommended packages:
  kscreen
The following packages will be REMOVED:
  kactivities libkf5screen6
The following NEW packages will be installed:
  kactivitymanagerd libkf5screen7 plasma-integration
The following packages will be upgraded:
  kde-l10n-engb kde-l10n-ru kde-spectacle kdeplasma-addons-data kwayland-data kwin-addons libkf5coreaddons-data libkf5coreaddons5 libkf5kiocore5 libkf5plasma5
  libkf5screen-bin libkf5waylandclient5 libkf5waylandserver5 libpowerdevilcore2 plasma-dataengines-addons plasma-desktop plasma-desktop-data plasma-runners-addons
  plasma-wallpapers-addons plasma-widgets-addons plasma-workspace
21 upgraded, 3 newly installed, 2 to remove and 221 not upgraded.
Need to get 42.5 MB of archives.
After this operation, 578 kB disk space will be freed.
Do you want to continue? [Y/n] 
...
Preparing to unpack .../plasma-desktop_4%3a5.6.4-0ubuntu1~ubuntu16.04~ppa3_amd64.deb ...
Unpacking plasma-desktop (4:5.6.4-0ubuntu1~ubuntu16.04~ppa3) over (4:5.5.5-0ubuntu1) ...
dpkg: error processing archive /var/cache/apt/archives/plasma-desktop_4%3a5.6.4-0ubuntu1~ubuntu16.04~ppa3_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/activities/settings/libkactivitiessettingsplugin.so', which is also in package qml-module-org-kde-activities:amd64 5.18.0-0ubuntu1
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
...
Errors were encountered while processing:
 /var/cache/apt/archives/plasma-desktop_4%3a5.6.4-0ubuntu1~ubuntu16.04~ppa3_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

2. remove plasma-desktop (apt-get remove plasma-desktop). May be perhaps too much action.
3. install qml-module-org-kde-activities
4. install plasma-desktop
5. full-upgrade

Success.

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https://bugs.launchpad.net/bugs/1584416

Title:
  Conflict between Kactivities and Kactivitymanagerd during upgrade
  Plasma 5.5 > 5.6 from Kubuntu Backports PPA

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