Describes the cause and action for error messages.
Error Message(English)：
cannot open display
(gnome-ssh-askpass:xxxx): Gtk-WARNING **: cannot open display っ ...
https://h2ham.net/git-gnome-ssh-askpass-gtk-warning-cannot-open-display
git produces Gtk-WARNING: cannot open display - Stack Overflow
https://stackoverflow.com/questions/16077971/git-produces-gtk-warning-cannot-open-display
Running gtkmm inside Docker for Mac : Gtk-WARNING ...
https://stackoverflow.com/questions/46005859/running-gtkmm-inside-docker-for-mac-gtk-warning-cannot-・・・
Running Chromium inside Docker - Gtk: cannot open display ...
https://stackoverflow.com/questions/28392949/running-chromium-inside-docker-gtk-cannot-open-display-・・・
Git clone error "(gnome-ssh-askpass:11720): Gtk-WARNING ...
https://stackoverflow.com/questions/34525962/git-clone-error-gnome-ssh-askpass11720-gtk-warning-cann・・・
git cloneしようとしたときに「(gnome-ssh-askpass:11403): Gtk-WARNING ...
https://hacknote.jp/archives/4209/
Git: (gnome-ssh-askpass:27820): Gtk-WARNING - をぶろぐ
http://tetsuwo.tumblr.com/post/133002029347/git-gnome-ssh-askpass
Gtk-WARNING **: cannot open display ・ Issue #12 ... - GitHub
https://github.com/mreiferson/php-wkhtmltox/issues/12
how to run a video detection without a screen ・ Issue #836 ... - GitHub
https://github.com/pjreddie/darknet/issues/836