Git and gnome-ssk-askpass error

When I run

  push origin master 

I get the following error

  (gnome-ssh-askpass:29241): Gtk-WARNING **: cannot open display:


Solution: 

If you are using a bash shell, run the following command:

unset SSH_ASKPASS

If you are using a tcsh shell, run the following command:

unsetenv SSH_ASKPASS