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I have just upgraded to 18.04 and am trying to install upgrades and or new programd via the terminal. I get the following message 

digikam-private-libs : Depends: libkf5sane5 (>= 4.3.4) but it is not going to be installed
                        Depends: libqtav1 but it is not going to be installed
                        Depends: libqtavwidgets1 but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
i have tried  sudo apt --fix broken install and get this message.dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
Preparing to unpack .../libqtav1_1.12.0+ds-4build3_amd64.deb ...
Unpacking libqtav1:amd64 (1.12.0+ds-4build3) ...
dpkg: error processing archive /var/cache/apt/archives/libqtav1_1.12.0+ds-4build3_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/libQtAV.so.1', which is also in package libqtav:amd64 1.11.0~git170314-xenial~ppa1
Preparing to unpack .../libqtavwidgets1_1.12.0+ds-4build3_amd64.deb ...
Unpacking libqtavwidgets1:amd64 (1.12.0+ds-4build3) ...
dpkg: error processing archive /var/cache/apt/archives/libqtavwidgets1_1.12.0+ds-4build3_amd64.deb (--unpack):
 trying to overwrite '/usr/lib/x86_64-linux-gnu/libQtAVWidgets.so.1', which is also in package libqtavwidgets:amd64 1.11.0~git170314-xenial~ppa1
Errors were encountered while processing:
 /var/cache/apt/archives/libkf5sane5_17.12.3-0ubuntu1_amd64.deb
 /var/cache/apt/archives/libqtav1_1.12.0+ds-4build3_amd64.deb
 /var/cache/apt/archives/libqtavwidgets1_1.12.0+ds-4build3_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

I have tried to apt remove digikam and apt purge digikam and recieved this message

 Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
 digikam-private-libs : Depends: libkf5sane5 (>= 4.3.4) but it is not going to be installed
                        Depends: libqtav1 but it is not going to be installed
                        Depends: libqtavwidgets1 but it is not going to be installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

I have tried to install aptitude and get the same message. Digikam appears as not installed in the Software center and when I press install I get an error message.Everything seem to work fine other than that. Thanks a bunch,,,,,Jacques

N0rbert
  • 99,918
jacques hervieux
  • 53

1 Answers1

0

It seems that there are packaging errors between two (16.04 and 18.04) releases.

So we can force installation of these packages:

sudo dpkg -i --force-all /var/cache/apt/archives/libkf5sane5_17.12.3-0ubuntu1_amd64.deb
sudo dpkg -i --force-all /var/cache/apt/archives/libqtav1_1.12.0+ds-4build3_amd64.deb
sudo dpkg -i --force-all /var/cache/apt/archives/libqtavwidgets1_1.12.0+ds-4build3_amd64.deb

And then resume package installation with

sudo dpkg --configure -a
sudo apt-get install -f

For sure upgrade all package dependencies and reinstall your packages with

sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install --reinstall libkf5sane5 libqtav1 libqtavwidgets1
N0rbert
  • 99,918