Setting gnucash language

All I can say is: in my configuration under Gnome, no matter what the command line is (if it is NOT gnucash %f) then Gnucash becomes NOT AVAILABLE as a gnome application. “You can have any colour you like as long as it is black”.

For example, I changed the command line as root to Exec=/bin/sh -c “LANGUAGE=de_DE.UTF-8 LANG=de_DE.UTF-8 gnucash %f” and Gnucash disappears from the Gnome application for the normal user.