I have Ubuntu 18.04 LTS installed.
I want to search for documentation and read it off-line (as it is included to the installed packages).
Yelp does not work for this purpose.
So I tried to use KHelpCenter. I installed it with sudo apt install khelpcenter
.
When I started it, it have various information sources:
- KDE-related stuff
UNIX manual pages - renders with error:
The requested operation could not be completed
Cannot Initiate the man Protocol
Technical Reason: Unable to Create io-slaveScrollkeeper - shows empty page:
Browse Info Pages - renders with error:
The requested operation could not be completed
Cannot Initiate the info Protocol
Technical Reason: Unable to Create io-slave
How to fix all these errors? Do I need to install some dependency or configure already installed?