Krita (Digital Painting) 2.8 / 2.9

[whateverthing]

Well, that's disappointing, but I can live with Krita 2.8 for now. But I'm having trouble getting that installed. Can you help me restore the original package/repository situation?

I removed the dimula73/krita repository and refreshed. Now it doesn't show krita-2.9, just the regular krita package. But when I try to install it in Synaptic, it complains: "Could not apply changes. Fix broken packages first." When I click Edit > Fix Broken Packages it reports an error.

Code:

E: Unable to correct problems, you have held broken packages.
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
E: Unable to correct dependencies

If I use command line and apt-get to install krita, I get this message again:

Code:

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
krita : Depends: calligra-libs (= 1:2.8.1-1-0ubuntu3) but it is not going to be installed
         Depends: kde-runtime but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

Any help fixing broken packages and generally getting me out of this mess would be much appreciated -- thank you!