Install libcalendarsupport4 by entering the following commands in the terminal:
sudo apt update sudo apt install libcalendarsupport4
Description:
calendar support library
This library defines calendar related model objects for KDE PIM module applications and provides a common interface for accessing and managing calendars provided by Akonadi resources. . This package is part of the KDE PIM module.
Homepage: http://pim.kde.org/
Version: 4:4.14.10-7
Section: universe/libs