Waiting for RPC reply to 'destroyWidget' timed out

[Archa4]

I recieve this message when quitting my program (if the program has worked for less then 20 sec - no message):

Waiting for RPC reply to 'destroyWidget'' call timed out
Write error: "Unknown error"
Sending RPC id failed for call of 'setSymbianSoftKeys'

If I try to debug my program, then debugger stops working at a moment, when I play with items on layout:

void MainWindow::closeTaskMain()
{
calendar->hoursList = dataManager->hoursList;
taskMain->setParent(0);
layout->addWidget(calendar);
}

What can this problem be related to?

[Archa4]

Don't want to create new Thread, so I'll ask here:
Can u write something like this:

QDate *dateForList = new QDate(date);
Where date is a simple QDate?

[Archa4]

Still no answers about the main question in this thread?