I had just this issue by trying to update/upgrade:
Preparing to unpack .../audacious-omg_0.8_all.deb ...
Unpacking audacious-omg (0.8) over (0.0.7) ...
dpkg: error processing archive /var/cache/apt/archives/audacious-omg_0.8_all.deb (--unpack):
trying to overwrite '/usr/share/uberstudent/applications/audacious-qt.desktop', which is also in package audacious-oxygen-icons 0.0.4
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Copying over architecture-specific files...
Everything else did work but audacious-omg_0.8_all.deb did not install. In case someone else is having issues with it, this is how it got sorted out in the end:
apt-get remove audacious-oxygen-icons
After that just simply update and upgrade by:
# apt-get update
# apt-get upgrade
# apt-get dist-upgrade
After this, everything seems to be fine.
P.S.: Somehow "super+d" does not work for me. Maybe it's related to uberstudent-desktop-xfce, which could not be installed because of an other package (this broken package was blocking updates by saying: try "install -f", which did not work, so I just removed both packages). Is it because I do not use thunar? (removed it, there are other FMs I like better) I'm not sure, however it's not an issue as everything works fine atm.
And one more thing: Just discovered a small but fine picture viewer: gpicview - really like it, simple and easy to use.