qtmultimedia build failed on WinRT and Windows Phone

c:\Users\qt\work\install\include\QtCore/qobjectdefs_impl.h(250): error C2338: Signal and slot arguments are not compatible (narrowing)
c:\Users\qt\work\install\include\QtCore/qobjectdefs_impl.h(266): note: see reference to class template instantiation 'QtPrivate::AreArgumentsCompatible<QCamera::State,bool>' being compiled
c:\Users\qt\work\install\include\QtCore/qobject.h(235): note: see reference to class template instantiation 'QtPrivate::CheckCompatibleArguments<QtPrivate::List<QCamera::State>,QtPrivate::List<bool>>' being compiled
qwinrtcameraimagecapturecontrol.cpp(131): note: see reference to function template instantiation 'QMetaObject::Connection QObject::connect<void(__cdecl QCameraControl::* )(QCamera::State),void(__cdecl QCameraImageCaptureControl::* )(bool)>(const QCameraControl *,Func1,const QCameraImageCaptureControl *,Func2,Qt::ConnectionType)' being compiled
        with
        [
            Func1=void (__cdecl QCameraControl::* )(QCamera::State),
            Func2=void (__cdecl QCameraImageCaptureControl::* )(bool)
        ]