Comment # 2 on bug 940500 from Graham Davis

(In reply to Dominique Leuenberger from comment #1)
> The fix for this is already in GNOME:Apps for a couple hours again :)
> 
> pyicu is an optional dependency.. which is not important.
> 
> what you are ACTUALLY missing is python3-cairo (which is by now already set
> as a requirement in the package). please re-install gramps 4.2.0 and retest.

Done that and is working but . . .
On launching, I got the following message:

++++
GTK translations for the current language (en_GB) are missing.
Gramps will proceed nevertheless.
The GUI will likely be broken as a result, especially for RTL languages!

See the Gramps README documentation for installation prerequisites,
typically located in /usr/share/doc/gramps.
++++

Since I'm only using en_GB, this warning seems a bit of a red herring and can
safely be ignored. It's just not one I've seen before. A new feature perhaps?

Thanks for quick fix.