On Tue January 6 2015 19:53:03 Marc Chénier wrote: > marco@Asus-64:~$ apt-cache policy libk3b3-trinity > libk3b3-trinity: > Installé : 4:14.0.0-s-0ubuntu12.04.0+0 > Candidat : 4:14.0.0-s-0ubuntu12.04.0+0 > Table de version : > *** 4:14.0.0-s-0ubuntu12.04.0+0 0 > 100 /var/lib/dpkg/status > 4:14.0.0-r201-0ubuntu12.04.0+pr34 0 > 500 To "downgrade" (not really but that's what apt thinks) from the Slavek version to the Release version you might try: apt-get install libk3b3-trinity=4:14.0.0-r201-0ubuntu12.04.0+pr34 You may continue to encounter similar problems until you replace any such foreign versions with actual release versions. --Mike