I am using Qt Creator 4.0.3 and when looking at an older project using QtQuick 1.1 and trying to view in the designer, I get "Cannot open this QML document because of an error in QML file: Unsupported QtQuick version (0:0).
"Go to error" brings me to the line import QtQuick 1.1 in my .qml file. I do not know if QtQuick 1.1 is loaded or available nor do I know how to find that info.