Failing asserts with LXDE

Platform you're running on: Lubuntu 14.04
Language: English
Distribution you used (source tarball, or binary): installed pgadmin3
package
Version you tested: 1.18.1

Open command line
phpadmin3
Clicking on "Add a connection to server" button on the left of main
menu results in following content appearing in command line


(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed

(pgadmin3:2772): GLib-GObject-WARNING **: invalid cast from
'GtkFileChooserButton' to 'GtkBin'

(pgadmin3:2772): Gtk-CRITICAL **: IA__gtk_widget_modify_style:
assertion 'GTK_IS_WIDGET (widget)' failed