QNetworkAccessManager setconfiguration() error.

Hi

I have problem with QNetworkAccessManager setconfiguration(). I compiled my app and get this error:

Class QNetworkAccessManager has no member named setconfiguration


Some lines:

.PRO:
QT += network

...
MOBILITY += bearer
...
TARGET.CAPABILITY = NetworkServices


.H
#include <QNetworkAccessManager>

.cpp
vgNetAccmanager = new QNetworkAccessManager(this);
QNetworkConfigurationManager manager;
vgNetAccmanager->setConfiguration(manager.defaultConfiguration());


I need setting the default access point. Currently when my application connects to internet the "Select access point" popup interrupts the flow of the app.
I can not find the error. Any idea? Thank you.

Pd: Sorry for my English.