Comment 27 for bug 1424263

Now worked: (fresh install of Ubuntu 14.04.3 64bit)

sudo apt-get install libc6:i386 libgl1-mesa-dri-lts-utopic:i386 libgl1-mesa-glx-lts-utopic:i386

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:
 indicator-bluetooth : Depends: unity-control-center but it is not going to be installed or
                                gnome-control-center but it is not going to be installed or
                                ubuntu-system-settings but it is not going to be installed
 libgl1-mesa-dri-lts-utopic:i386 : Conflicts: libgl1-mesa-dri
 libgl1-mesa-glx-lts-utopic:i386 : Depends: libglapi-mesa-lts-utopic:i386 (= 10.3.2-0ubuntu1~trusty2) but it is not going to be installed
 libqt5feedback5 : Depends: libqt5multimedia5 (>= 5.0.2) but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.