请问这种情况是什么原因造成的啊， 拜托拜托！！
QStackedWidget::setCurrentWidget: widget 0x81307e8 not contained in stack。
this->priWindow = priWindow;
this->secWindow = secWindow;
this->stackedWidget->addWidget(this->secWindow);
this->stackedWidget->addWidget(this->priWindow);
QObject::connect(this->secWindow->pushBty_123,SIGNAL(clicked()),this,SLOT(ActivationPrimaryWindow()));QObject::connect(this->priWindow->pushBty_back,SIGNAL(clicked()),this, SLOT(ActivationSecondWindow()));
void MainDialog::ActivationPrimaryWindow()
{
this->stackedWidget->setCurrentWidget(this->priWindow);
}
void MainDialog::ActivationSecondWindow()
{
this->stackedWidget->setCurrentWidget(this->secWindow);}
有时间是正常的， 有时间会出现以下情况，请问怎么解决啊， 拜托了朋友。
QStackedWidget::setCurrentWidget: widget 0x81307e8 not contained in stack。
