I've just had this problem -- updated to Mint 19.2 and found Gnome-terminal not starting. I tracked that to gnome-terminal-server refusing to start because of a non-UTF locale.
I ended up commenting out these two lines in samuel@hpre:~$ egrep 'LANG|LC[_=]' .??* 2> /dev/null . . . . .profile:# export LANG=C .profile:# export LC_ALL=C . . . . .bashrc:# export LANG=en .bashrc:# export LC_ALL=en Problem solved. -- Stephen Samuel http://www.bcgreen.com Software, like love, 778-861-7641 grows when you give it away