SUMMARY When you run examples/simpleexamples/AbstractApplicationWindow.qml it logs warning that we are assigning a object of non PageRow type to a PageRow typed property. It turns out we are assigning a StackView.view to that property. Also, we are doing the same for ColumnView. See: https://invent.kde.org/frameworks/kirigami/-/blob/master/examples/simpleexamples/AbstractApplicationWindow.qml https://invent.kde.org/frameworks/kirigami/-/blob/master/src/controls/Page.qml#L242 https://invent.kde.org/frameworks/kirigami/-/blob/master/src/controls/Page.qml#L246 STEPS TO REPRODUCE 1. Navigate to examples/simpleexamples 2. Execute ``qmlscene AbstractApplicationWindow.qml`` 3. Check the console log EXPECTED RESULT We shouldn't have errors in the log for things like these. It makes kirigami look ridiculous. On the other hand, the only way to "fix" this is to make that property a QObject. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.105.0 Qt Version: 5.15.9 Kernel Version: 6.1.24-1-lts (64-bit) Graphics Platform: Wayland Processors: 12 × Intel® Core™ i7-8700 CPU @ 3.20GHz Memory: 15,6 GiB of RAM Graphics Processor: AMD Radeon RX 480 Graphics LOG: file:///usr/lib/qt/qml/org/kde/kirigami.2/Page.qml:359: Error: Cannot assign QObject* to PageRow_QMLTYPE_26* file:///usr/lib/qt/qml/org/kde/kirigami.2/Page.qml:359: Error: Cannot assign QObject* to PageRow_QMLTYPE_26*