package libxfce4panel-2.0-4 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0', which is also in package xfce4-panel 4.11.0-0ubuntu1

[Henk Schäfer]

Error occurs during update (15 lts upgraded to 16 lts), updates seem to continue after the error occurred.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libxfce4panel-2.0-4 (not installed)
ProcVersionSignature: Ubuntu 3.13.0-93.140-lowlatency 3.13.11-ckt39
Uname: Linux 3.13.0-93-lowlatency x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
Date: Wed Aug 3 08:09:59 2016
DuplicateSignature:
 package:libxfce4panel-2.0-4:(not installed)
 Unpacking libxfce4panel-2.0-4 (4.12.0-3ubuntu2) ...
 dpkg: error processing archive /var/cache/apt/archives/libxfce4panel-2.0-4_4.12.0-3ubuntu2_amd64.deb (--unpack):
  trying to overwrite '/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0', which is also in package xfce4-panel 4.11.0-0ubuntu1
ErrorMessage: trying to overwrite '/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0', which is also in package xfce4-panel 4.11.0-0ubuntu1
InstallationDate: Installed on 2014-04-25 (830 days ago)
InstallationMedia: Ubuntu-Studio 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.3)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: xfce4-panel
Title: package libxfce4panel-2.0-4 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/x86_64-linux-gnu/xfce4/panel/wrapper-2.0', which is also in package xfce4-panel 4.11.0-0ubuntu1
UpgradeStatus: Upgraded to xenial on 2016-08-02 (0 days ago)

[Launchpad Janitor (janitor)]

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

[Big Brother Is Watching You (bbiwy)]

Hello. I had a similar problem with my Xubuntu 14.04 LTS:

Vorbereitung zum Entpacken von .../libxfce4panel-2.0-4_4.12.1-2_amd64.deb ...
Entpacken von libxfce4panel-2.0-4 (4.12.1-2) ...
dpkg: Fehler beim Bearbeiten des Archivs /var/cache/apt/archives/libxfce4panel-2.0-4_4.12.1-2_amd64.deb (--unpack):
 Versuch, »/usr/lib/x86_64-linux-gnu/libxfce4panel-2.0.so.4.0.0« zu überschreiben, welches auch in Paket xfce4-panel 4.11.0-0ubuntu1 ist
dpkg-deb: Fehler: Unterprozess einfügen wurde durch Signal (Datenübergabe unterbrochen (broken pipe)) getötet
Trigger für libc-bin (2.19-0ubuntu6.9) werden verarbeitet ...
Fehler traten auf beim Bearbeiten von:
 /var/cache/apt/archives/libxfce4panel-2.0-4_4.12.1-2_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

I think the problem is, that a new version of the xfce4-datetime-plugin (Version 0.7.0-1) was installed, that depends on xfce4-panel=4.12.1-2.

I solved it this way:

sudo apt-cache madison ^xfce4-datetime-plugin

to look for available versions of the datetime-plugin.

xfce4-panel --version

to check which version of the panel is installed. It was for me: xfce4-panel 4.11.0 (Xfce 4.10).

Then i did a:

sudo apt-get install xfce4-datetime-plugin=0.6.2-1ubuntu2

to install the older version of the datetime-plugin.

And everything seems to work now. I'm not sure if this was the real problem, but:

sudo apt-get install or sudo apt-get -f install

now returns no errors.

[Big Brother Is Watching You (bbiwy)]

You and also do a:

dpkg -l 'xfce4-datetime-plugin*' | grep ^i

to look which version of the datetime-plugin is installed.

[Big Brother Is Watching You (bbiwy)]

Sorry i meant "You can also do a:"

:)