Install libayatana-indicator3-tools by entering the following commands in the terminal:
sudo apt update sudo apt install libayatana-indicator3-tools
Description:
Tools for libayatana-indicator
The Ayatana Indicators library contains information to build indicators to go into modern desktops' indicator applets. . This package contains tools useful for developers of applications using indicators.
Homepage: https://github.com/AyatanaIndicators/libayatana-indicator
Version: 0.6.2-1
Section: universe/devel