gvim warning produced when closing gvim

Symptom:

(gvim:17446): GLib-GObject-WARNING **: cannot retrieve class for invalid (unclassed) type '<invalid>'

Solution: 

                        

vim-gnome and vim-gtk must be uninstalled

                        $ sudo apt-get remove vim-gnome

                        $ sudo apt-get remove vim-gtk

vim-gtk3 needs to be installed

                        $ sudo apt-get install vim-gtk3