plasmoid crashes

Hi

I'm trying to write a plasmoid
My programming skills are bad
This seems to compile ok but crash

Code:

m_manager = new QNetworkAccessManager(this);
 m_manager->get(QNetworkRequest(QUrl("http://website.com")));

Code:

KCrash: Application 'plasmoidviewer' crashing...
sock_file=/home/mythtv/.kde4/socket-fileserver/kdeinit4__1019
kdeinit4: preparing to launch 
Could not find '' executable.
KCrash cannot reach kdeinit, launching directly.
KCrash failed to exec(), errno = 2