Qt SDK 1.1 (Technology Preview) has a bug when i create the new Qt Quick Project and run

I created the Qt Quick Project on newly released Qt SDK 1.1 (Technology Preview) using Tutorial "How to create qt Quick application", On the Default QML file there is "import QtQuick 1.0" on top and when i run it was giving blank window . and on the screenshot of the QML file on Tutorial There is "import Qt 4.7" . After changed to "import Qt 4.7" on QML Files, the application is working fine and displaying output ("Hello World")