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