error when starting app

[Flatman <flatman swing be>]

Hi,

I wrote a little app with Gtk2 and Perl

I allways get this error when starting the app, however the app works
fine ...

GLib-GObject-WARNING **: Two different plugins tried to register 'BasicEngineFc'. at Helloworld.pl line 9.
GLib-GObject-CRITICAL **: g_object_new: assertion `G_TYPE_IS_OBJECT (object_type)' failed at Helloworld.pl 
line 9.
Failed to load Pango module for id: 'BasicScriptEngineFc'

The code is :

use strict;
use Gtk2 '-init';

my $window = Gtk2::Window->new;
my $button = Gtk2::Button->new ('Hello World! I Quit');
$button->signal_connect (clicked => sub { Gtk2->main_quit} ) ;
$window->signal_connect (destroy => sub { Gtk2->main_quit} ) ;
$window->add ($button);
$window->show_all;
Gtk2->main;


any idea why I get this error ?

Thanks
Erik