Error building template class 'GtkPrintUnixDialog'

[Scott Talbert <swt techie net>]

Hi all,

When calling gtk_print_operation_run(), I'm seeing this GTK error:

Gtk-CRITICAL **: Error building template class 'GtkPrintUnixDialog' for an 
instance of type 'GtkPrintUnixDialog': Invalid object type 
`GtkPrinterOptionWidget' on line 567

Does anyone know what might be the issue?

This is the code for calling gtk_print_operation_run:
    GtkPrintOperationResult response = gtk_print_operation_run
                                       (
                                           printOp,
                                           GetShowDialog()
                                            ? 
GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG
                                            : 
GTK_PRINT_OPERATION_ACTION_PRINT,
                                           m_parent
                                            ? 
GTK_WINDOW(gtk_widget_get_toplevel(m_parent->m_widget))
                                            : NULL,
                                           &gError
                                       );

Thanks,
Scott