Install libakonadi-kde4 by entering the following commands in the terminal:
sudo apt update sudo apt install libakonadi-kde4
Description:
library for using the Akonadi PIM data server
This is the client access library for using the Akonadi PIM data server. . This package is part of the KDE Development Platform PIM libraries module.
Homepage: http://pim.kde.org/
Version: 4:4.14.10-1ubuntu7
Section: universe/libs