sudo apt install krita
Reading package lists... Done
Building dependency tree       
Reading state information... Done
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 (= 1:2.9.7-0ubuntu14) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

sudo apt install krita calligra-libs
Reading package lists... Done
Building dependency tree       
Reading state information... Done
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.
 calligra-libs : Depends: libakonadi-kde4 (>= 4:4.5.86) but it is not going to be installed
                 Recommends: fonst-lyx but it is not installable
E: Unable to correct problems, you have held broken packages.

sudo apt install krita calligra-libs libakonadi-kde4
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following additional packages will be installed:
  calligra-data krita-data libakonadiprotocolinternals1 libcauchy0.0v5 libgsl2 libkabc4 libkcalcore4 libkdcraw-data libkdcraw23 libkldap4 libkresources4 libkrossui4
  libm2mml0.0v5 libopencolorio1v5 libphononexperimental4 libsoprano4 libspnav0 libtinyxml2.6.2v5 libyaml-cpp0.3v5 soprano-daemon
Suggested packages:
  texlive wordnet gsl-ref-psdoc | gsl-doc-pdf | gsl-doc-info | gsl-ref-html spacenavd virtuoso-minimal
Recommended packages:
  fonst-lyx
The following packages will be REMOVED
  akonadi-server kdepim-runtime korganizer
The following NEW packages will be installed
  calligra-data calligra-libs krita krita-data libakonadi-kde4 libakonadiprotocolinternals1 libcauchy0.0v5 libgsl2 libkabc4 libkcalcore4 libkdcraw-data libkdcraw23 libkldap4
  libkresources4 libkrossui4 libm2mml0.0v5 libopencolorio1v5 libphononexperimental4 libsoprano4 libspnav0 libtinyxml2.6.2v5 libyaml-cpp0.3v5 soprano-daemon
0 to upgrade, 23 to newly install, 3 to remove and 2 not to upgrade.
Need to get 34.6 MB of archives.
After this operation, 113 MB of additional disk space will be used.
Do you want to continue? [Y/n] n
Abort.