kwin bug

kwin_core: Compositing is not possible
Cyclic dependency detected between "file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml" and "file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/styles/org.kde.desktop.plasma/Units.qml"
QMetaProperty::read: Unable to handle unregistered datatype 'XwaylandCrashPolicy' for property 'KWin::Options::xwaylandCrashPolicy'
file:///usr/share/kwin/scripts/desktopchangeosd/contents/ui/main.qml:18:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }