Install gworkspace-common by entering the following commands in the terminal:
sudo apt update sudo apt install gworkspace-common
Description:
GNUstep Workspace Manager - common files
GWorkspace is the official GNUstep workspace manager. . This package contains the architecture-independent files; it is not useful on its own.
Homepage: http://www.gnustep.org/experience/GWorkspace.html
Version: 0.9.4-1build1
Section: universe/gnustep