I believe this issue was fixed in Debian in 2.8.12.1-15 - syncing the latest package from Debian should fix it:
wxwidgets2.8 (2.8.12.1-15) unstable; urgency=low * Fix race condition which could result in mmedia libraries going into more than one binary package in a parallel package build. (Closes: #719250) [...] -- Olly Betts <o...@survex.com> Wed, 28 Aug 2013 10:25:35 +1200 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1249161 Title: package libwxgtk-media2.8-0 (not installed) failed to install/upgrade: trying to overwrite '/usr/lib/i386-linux- gnu/libwx_gtk2u_media-2.8.so.0.8.0', which is also in package libwxgtk2.8-0:i386 2.8.12.1-11ubuntu4 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/wxwidgets2.8/+bug/1249161/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs