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    Bug 
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    Resolution: Done
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    P1: Critical 
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    Qt Creator 2.5.0
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    None
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    Mac OS X 10.7.4
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        d0152332a47837e1ec8522175a0a6d3571c4fba5
I created the .qml file, added this code to it:
 import QtQuick 1.0
 Rectangle 
So Creator shows the yellow lamp icon near "Rectangle", and when I press it, there is a crash with backtrace saying that QGraphicsDropShadowEffect::draw(QPainter*) cause a segfault. The full BT is in attach.
I think that's because of a bug 23205 ( https://bugreports.qt-project.org/browse/QTBUG-23205 ) in Qt 4.8+.