On Fri November 28 2014 16:34:05 Sl�vek Banko wrote:
> This is precisely why libtdepim1-trinity has also set:
>
>   Provides: libkcal2b-trinity
>
> This ensures that the packages will not lose their dependence => do not
> need immediately rebuild.

This is one of those horrible corner cases, see Debian Policy Manual 7.5:

<https://www.debian.org/doc/debian-policy/ch-relationships.html#s-virtual>

libkcal2b-trinity is now a virtual package, and virtual packages cannot
satisfy versioned dependencies:

  The following packages have unmet dependencies:
   kipi-plugins-trinity : Depends: libkcal2b-trinity (>= 4:3.5.7)

--Mike