Eu tive o problema semelhante.
Tente o seguinte comando:
sudo dpkg -i --force-overwrite /var/cache/apt/archives/plasma-desktop_4%3a5.6.5-0ubuntu1~ubuntu16.04~ppa1_amd64.deb
sudo apt-get -f install
Isso deve fazer:)
Eu tive este problema e eu segui a primeira solução.
Estou mais perto de uma solução, mas agora a área de trabalho do plasma não será instalada. Eu executei este comando sudo apt-get install kubuntu-desktop novamente e este é o resultado:
Reading package lists... Done
Building dependency tree
Reading state information... Done
kubuntu-desktop is already the newest version (1.338).
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies.
kubuntu-desktop : Depends: plasma-desktop but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
Então eu corri sudo apt-get -f install e consegui isto:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following additional packages will be installed:
plasma-desktop
The following NEW packages will be installed
plasma-desktop
0 to upgrade, 1 to newly install, 0 to remove and 232 not to upgrade.
1 not fully installed or removed.
Need to get 0 B/1,541 kB of archives.
After this operation, 8,084 kB of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 295821 files and directories currently installed.)
Preparing to unpack .../plasma- desktop_4%3a5.6.5-0ubuntu1~ubuntu16.04~ppa1_amd64.deb ...
Unpacking plasma-desktop (4:5.6.5-0ubuntu1~ubuntu16.04~ppa1) ...
dpkg: error processing archive /var/cache/apt/archives/plasma-desktop_4%3a5.6.5-0ubuntu1~ubuntu16.04~ppa1_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)
Processing triggers for dbus (1.10.6-1ubuntu3) ...
Processing triggers for bamfdaemon (0.5.3~bzr0+16.04.20160824-0ubuntu1) ...
Rebuilding /usr/share/applications/bamf-2.index...
Processing triggers for gnome-menus (3.13.3-6ubuntu3.1) ...
Processing triggers for desktop-file-utils (0.22-1ubuntu5) ...
Processing triggers for mime-support (3.59ubuntu1) ...
Errors were encountered while processing:
/var/cache/apt/archives/plasma-desktop_4%3a5.6.5-0ubuntu1~ubuntu16.04~ppa1_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
O que devo fazer a seguir?
Eu tive o problema semelhante.
Tente o seguinte comando:
sudo dpkg -i --force-overwrite /var/cache/apt/archives/plasma-desktop_4%3a5.6.5-0ubuntu1~ubuntu16.04~ppa1_amd64.deb
sudo apt-get -f install
Isso deve fazer:)