Is socket closed in your code?

Try to locate the message in Qt sources and set the break-point on it – this may help you to understand what happens.

Thanks for your reply.

How to close the socket?

I only use the QNetworkAccessManager and QNetworkReply of the network classes.
As said above,I only use the get() function of QNetworkAccessManager to get a url,and deal with the data that the url reply with the QNetworkReply.

and I don’t know how to locate the message,either because I don’t know how the problem appeared

hisong1988 wrote:

How to close the socket?

Quote from Qt documentation:

Note: After the request has finished, it is the responsibility of the user to delete the QNetworkReply object at an appropriate time. Do not directly delete it inside the slot connected to finished(). You can use the deleteLater() function.

Maybe, QNetworkAccessManager also should be deleted on application close, I am not sure.

hisong1988 wrote:

and I don’t know how to locate the message,either because I don’t know how the problem appeared

Just search all files in the Qt sources – it is Open Source benefit :-)

To find the cause of the problem try to follow my second suggestion: locate in the Qt or Qt Mobility sources the string from the message window and set breakpoint at that place.

Good Luck

I’ve faced same problem. It looks like qt network access backend doesn’t handle sockets properly.

I suppose root cause is same as reported in:
http://bugreports.qt.nokia.com/browse/QTBUG-12686

I don’t really understand the root cause with the link you give.

Thanks very much. I hope the exception will be solved by next Qt version.

Hello,
I am the next one – I also get exception on 3 [will close the socket handle – hack] but on a XM5800 with Qt 4.7.1.

The phone also always bugs me about reconnecting – so it looks like the socket is somehow being killed all the time.

P.S: This also happens in QFtp