`show-upnp' of hildon file chooser dialog question...

[prosteven2]

hello.

code firstly:
///////////////////////
GtkWidget* dlg = hildon_file_chooser_dialog_new_with_properties( GTK_WINDOW(widget), "action", GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER, "title", "Open folder", NULL );

gtk_widget_show_all( dlg );
gint response = gtk_dialog_run( (GtkDialog*)dlg );
///////////////////////

result:
http://1813.img.pp.sohu.com.cn/images/2009/6/11/19/12/1227b55799eg213.jpg

By clicking "New" and try to make a new sub-folder,the X terminal has the following outputs:

GLIB WARNING ** GLib-GObject - IA__g_object_new_valist: object class `HildonFileChooserDialog' has no property named `show-upnp'


What does this mean?what's "show-upnp"?

[prosteven2]

...operation faild...once again,i got the output:

GLIB WARNING ** GLib-GObject - gsignal.c:1541: signal "voldev_mounted" already exists in the `HildonFileSystemModel' class ancestry