On Monday, December 18, 2017 4:23:26 AM CET Ali Morshedi wrote:
> Hello all,
> 
> When I try to run kate from command line in ubuntu 16.04, I get the
> following error:
> 
> kate: symbol lookup error: kate: undefined symbol:
> _ZNK15QGuiApplication17isSessionRestoredEv
> 
> 
> Please let me know if you're aware of what's causing this. Also, please CC
> me in your response.

Seems like an issue in your setup. What do you get when you run `ldd $(which 
kate)`? Note that the symbol it's missing above should be available since a 
long time, it's not new at all. So clearly something is severly broken on your 
side.

-- 
Milian Wolff
mail@milianw.de
http://milianw.de