[Help-smalltalk] how to create an URL ?

[Pupeno]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I'm trying to run this code to create an URL:
Namespace current: NetClients.
a := URL new.
but I keep getting this error:
Smalltalk.UndefinedObject(Smalltalk.Object)>>#doesNotUnderstand:
optimized [] in <no name>>>#Doit
<no name>>>#Doit
[] in Smalltalk.Behavior class(Smalltalk.Behavior)>>#evalString:to:ifError:
optimized [] in Smalltalk.BlockClosure>>#valueWithUnwind
Smalltalk.BlockClosure>>#ensure:
Smalltalk.BlockClosure>>#valueWithUnwind
Smalltalk.Behavior class(Smalltalk.Behavior)>>#evalString:to:ifError:
Smalltalk.Behavior class(Smalltalk.Behavior)>>#evaluate:to:ifError:
BLOX.BLOXBrowser.PWorksheetText(BLOX.BLOXBrowser.PText)>>#doEval:ifError:
BLOX.BLOXBrowser.PWorksheetText>>#doEval:ifError:
BLOX.BLOXBrowser.PWorksheetText(BLOX.BLOXBrowser.PText)>>#eval
Smalltalk.DirectedMessage(Smalltalk.Message)>>#sendTo:
Smalltalk.DirectedMessage>>#send
BLOX.BMenuItem(BLOX.BMenuObject)>>#invokeCallback

and this for a lot of other cases (other clases/namespaces).
What am I doing wrong ?

Thank you.
- -- 
Pupeno: address@hidden - http://www.pupeno.com
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (GNU/Linux)

iD8DBQFBIu/kfW48a9PWGkURAuLWAJwOkDKeImA/iA0ZYT06DSosc5enhwCdEJtp
KaCvu2fsKMcR3K8LEm4U+lk=
=3gYO
-----END PGP SIGNATURE-----