Ubuntu Software Center - Error - "cannot perform the following tasks"
From Ubuntu Software Center, I tried to install "GTK Common Themes". During the installation halfway through the process I get the following error message:
Unable to install "GTK Common Themes"; cannot perform the following tasks:
Make sure that the list of available software is up-to-date before trying to install GTK Common Themes. In all currently supported versions of Ubuntu, open the terminal and type:
sudo apt update
sudo snap install gtk-common-themes