KatolaZ [2017-06-15 11:35]:

> the unmet dependency there might not be tasksel (which is a virtual
> package) rather a chain of deps which goes down to dbus. Since an
> updated version of dbus is now available in ascii's repos, you should
> be able to dist-upgrade to ascii (we will come back to tasksel as
> well, in due course).

This upgrade has fixed the xfce4 uninstallation problem.
--
Hilsen Harald