Ubuntu 14.04 with current updates. This is what I get when I type this command "sudo nautilus"
(nautilus:3803): Gtk-WARNING **: Failed to register client: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
thank you
sudo
. Usegksu nautilus
(preferably) orsudo -H nautilus
. See the excellent answer here: http://askubuntu.com/questions/270006/why-user-should-never-use-normal-sudo-to-start-graphical-application – Jacob Vlijm Feb 22 '16 at 16:58