QT Creator just shows a white rectangle in design view -

I follow the second tutorial "Creating a QT Quick Application", but during my design view, the design scene A white rectangle in the tutorial shows how the window runs when you run it.

My design view is in the picture below. How can I make it like a regular window instead of a checkboard pattern?

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I have the same problem By default, you have both QtQuick 1.1 and 2.0 imported, so I removed the import QtQuick 1.1 line from main.qml And who seems to fix it.