I also get similar error when starting Totem:
totem
(totem:5886): Gtk-CRITICAL **: gtk_widget_get_preferred_width_for_height:
assertion `height = 0' failed
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-CRITICAL **: gtk_distribute_natural_allocation:
assertion `extra_space = 0' failed
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkMenuBar's child GtkImageMenuItem 0x7f20b36be980.
Allocation is -1281978616x-1, but minimum required size is
-1311030100x21.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width -1281978616 and height -1
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkImageMenuItem's child GtkAccelLabel 0x7f20b36c52d0.
Allocation is 1x-3, but minimum required size is 797619436x17.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width 1 and height -3
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkMenuBar's child GtkImageMenuItem 0x7f20b3788280.
Allocation is -1281978616x-1, but minimum required size is
-1311030100x21.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width -1281978616 and height -1
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkImageMenuItem's child GtkAccelLabel 0x7f20b36c5dd0.
Allocation is 1x-3, but minimum required size is 797619436x17.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width 1 and height -3
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkMenuBar's child GtkImageMenuItem 0x7f20b3788740.
Allocation is -1281978616x-1, but minimum required size is
-1311030100x21.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width -1281978616 and height -1
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkImageMenuItem's child GtkAccelLabel 0x7f20980298e0.
Allocation is 1x-3, but minimum required size is 797619436x17.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width 1 and height -3
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkMenuBar's child GtkImageMenuItem 0x7f209803c770.
Allocation is -1281978616x-1, but minimum required size is
-1311030100x21.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width -1281978616 and height -1
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkImageMenuItem's child GtkAccelLabel 0x7f20b3794b60.
Allocation is 1x-3, but minimum required size is 797619436x17.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width 1 and height -3
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkMenuBar's child GtkImageMenuItem 0x7f20b379f3b0.
Allocation is -1281978616x-1, but minimum required size is
-1311030100x21.
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
allocate widget with width -1281978616 and height -1
(totem:5886): Gtk-CRITICAL **:
gtk_widget_get_preferred_width_for_height: assertion `height = 0'
failed
(totem:5886): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to
underallocate GtkImageMenuItem's child GtkAccelLabel 0x7f2098053b90.
Allocation is 1x-3, but minimum required size is 797619436x17.
(totem:5886): Gtk-WARNING **:
