$ apt-get install -f -o 'Dpkg::Options::=--force-confmiss --force-all --force-confnew --overwrite-conffiles' --reinstall at-spi2-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
kde-workspace-bin : Depends: qdbus but it is not going to be installed
libqt4-dbus : Depends: qdbus (= 4:4.8.5+git192-g085f851+dfsg-2ubuntu4) but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
I don't quite understand "but it is not going to be installed". Why doesn't it install it then?
apt-get -f install
does not help, it does nothing:
$ apt-get install -f
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
sudo apt-get install qdbus
.main
and only haddeb http://de.archive.ubuntu.com/ubuntu/ wily universe multiverse
in addition to trusty. Then, apt wanted to install a package from universe, which depended on versions available in wily/main only and thus could not be installed.sudo apt-get install --reinstall at-spi2-core qdbus libqt4-dbus