error message (in German, but should be comprehensible enough ;-): calligraauthor: Hängt ab von: calligra-libs (=1:2.9.7-0ubuntu12), aber es wird 1:3.0.0.1-0neon+16.04+build13 installiert Hängt ab von: calligrawords-common, aber es wird nicht installiert
according to the calligra website, calligraflow is unmaintained, calligraauthor is kind of dead and braindump is unmaintained as well, so it won't get fixed soon.