[Bug 1322382] Re: apt-get says that there are 'held broken' packages when there are no held packages

[Mohamed Samy]

I had the same error, and I solved it by checking the first two items in
the screenshot. You can open it by opening system settings ====>
software & updates =====> updates tab. After closing the window, type
'sudo apt-get update' in the terminal.


** Attachment added: "Screenshot from 2016-06-10 23:25:30.png"
   https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1322382/+attachment/4681298/+files/Screenshot%20from%202016-06-10%2023%3A25%3A30.png

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Title:
  apt-get says that there are 'held broken' packages when there are no
  held packages

Status in apt package in Ubuntu:
  New

Bug description:
  While attempting to install some package, apt-get tells me:
  E: Unable to correct problems, you have held broken packages.
  But looking for the held packages returns nothing.
  Hence, an obvious contradiction.

  This problem is important because this message obscures the real
  reasons behind the failure of the often used 'apt-get install'
  command.

  The message produced is absolutely not helpful for understanding of
  what is actually wrong.

  
  --- console log showing a problem ---
  $ sudo apt-get install libqt4-dev
  [sudo] password for xxx: 
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   libqt4-dev : Depends: libqt4-dbus (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-declarative (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-designer (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-help (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-network (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-qt3support (= 4:4.8.1-0ubuntu4) but it is not going to be installed
                Depends: libqt4-script (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-scripttools (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-sql (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-svg (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-test (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-xml (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqt4-xmlpatterns (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqtcore4 (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: libqtgui4 (= 4:4.8.1-0ubuntu4) but 4:4.8.1-0ubuntu4.1 is to be installed
                Depends: qt4-linguist-tools (= 4:4.8.1-0ubuntu4) but it is not going to be installed
                Recommends: libqt4-opengl-dev (= 4:4.8.1-0ubuntu4) but it is not going to be installed
                Recommends: libqtwebkit-dev (>= 2.0~) but it is not going to be installed
  E: Unable to correct problems, you have held broken packages.

  $ dpkg --get-selections | awk '{if ($2 == "hold") print $0;}'
  <... no output ...>

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