When I try
skype --secondary, I get:
Gtk-Message: Failed to load module "overlay-scrollbar" Gtk-Message: Failed to load module "unity-gtk-module"
sudo nautilus I get:
(nautilus:15683): 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
And I also get some other GTK+ warnings when installing for example VMware or other programs.
I get these errors, but everything works just fine, but I want to know why is this happening and how can I resolve this.