Install libecal-1.2-19 by entering the following commands in the terminal:
sudo apt update sudo apt install libecal-1.2-19
Description:
Client library for evolution calendars
Evolution is the integrated mail, calendar, task and address book distributed suite from Novell, Inc. . This package is a client library for evolution calendar.
Homepage: https://wiki.gnome.org/Apps/Evolution
Version: 3.28.1-1ubuntu1
Section: libs