Timeline::TimelineModel is neither a default constructible QObject, nor a default- and copy-constructible Q_GADGET, nor marked as uncreatable.
You should not use it as a QML type.
qrc:/qt/qml/QtCreator/Tracing/MainView.qml:120:5: Type TimelineLabels unavailable
TimelineLabels {
^
qrc:/qt/qml/QtCreator/Tracing/TimelineLabels.qml:73:21: Type CategoryLabel unavailable
CategoryLabel {
^
qrc:/qt/qml/QtCreator/Tracing/CategoryLabel.qml:122:5: Type ImageToolButton unavailable
ImageToolButton {
^
qrc:/qt/qml/QtCreator/Tracing/ImageToolButton.qml:25:17: PaddedRectangle is not a type
background: PaddedRectangle {
^
qrc:/qt/qml/QtCreator/QmlProfiler/QmlProfilerFlameGraphView.qml:7:1: Type FlameGraphView unavailable
FlameGraphView {
^
qrc:/qt/qml/QtCreator/Tracing/FlameGraphView.qml:247:9: Type RangeDetails unavailable
RangeDetails {
^
qrc:/qt/qml/QtCreator/Tracing/RangeDetails.qml:82:9: Type ImageToolButton unavailable
ImageToolButton {
^
qrc:/qt/qml/QtCreator/Tracing/ImageToolButton.qml:25:17: PaddedRectangle is not a type
background: PaddedRectangle {
^
qt.core.qobject.connect: QObject::connect: Cannot connect (nullptr)::typeSelected(int) to QmlProfiler::Internal::FlameGraphView::typeSelected(int)
QLayout: Attempting to add QLayout "" to QmlProfiler::Internal::Quick3DFrameView "QmlProfiler.Quick3DFrame.Dock", which already has a layout
QLayout: Attempting to add QLayout "" to QmlProfiler::Internal::Quick3DFrameView "QmlProfiler.Quick3DFrame.Dock", which already has a layout