(update-manager:6907): Gtk-WARNING **: Attempting to add a widget with type aptdaemon+gtk3widgets+AptProgressDialog to a GtkWindow, but as a GtkBin subclass a GtkWindow can only contain one widget at a time; it already contains a widget of type GtkVBox
here is the out put in the terminal
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gtk-WARNING **: Attempting to add a widget with type aptdaemon+ gtk3widgets+ AptProgressDial og to a GtkWindow, but as a GtkBin subclass a GtkWindow can only contain one widget at a time; it already contains a widget of type GtkVBox
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed
(update- manager: 6907): Gdk-CRITICAL **: gdk_window_ get_pointer: assertion `GDK_IS_WINDOW (window)' failed