Resolving "Could not update ICEAuthority /var/lib/gdm3

Here is the error message that you might encounter before logging into gnome desktop:

Could not update .ICEauthority file  /var/lib/gdm3/.ICEauthority

I have resolved this problem by simply removing that file and let gdm3 daemon re-create it. The commands below must be executed with root privileges.

/etc/init.d/gdm3 stop rm /var/lib/gdm3/.ICEauthority* /etc/init.d/gdm3 start 
perform the above steps from another pseudo terminal (the terminal in which the gnome desktop runs is tty8)

Om namo shridharaya