Using qtqucik and qml in a qt widget based ui

I had a qt android application that currently uses a widget ui and want to use qtquick to use qml to make a new ui. To do this I used the following code  QQuickView *view = new QQuickView();     QWidget *container = QWidget::createWindowContainer(view, this);     container->setMinimumSize(200, 200);     container->setMaximumSize(200, 200);     container->setFocusPolicy(Qt::TabFocus);     view->setSource(QUrl("/path/to/qmlfile/main.qml"));     QLayout *layout = this->layout();     layout->addWidget(container); I keep getting a segmentation fault because of this code later on in my program. I get this error “E/libEGL ( 8107): eglMakeCurrent:534 error 3002 (EGL_BAD_ACCESS)” and then it crashes with the segfault.