Fails with: QQmlApplicationEngine failed to load component qrc:/qml/DiscoverWindow.qml:257 Type Kirigami.ContextDrawer unavailable file:///usr/lib64/qt5/qml/org/kde/kirigami.2/ContextDrawer.qml:170 Type ContextDrawerActionItem unavailable file:///usr/lib64/qt5/qml/org/kde/kirigami.2/private/ContextDrawerActionItem.qml:53 Type ActionsMenu unavailable file:///usr/lib64/qt5/qml/org/kde/kirigami.2/private/ActionsMenu.qml:31 Type ActionMenuItem unavailable file:///usr/lib64/qt5/qml/org/kde/kirigami.2/private/ActionMenuItem.qml:34 "Controls.MenuItem.icon" is not available due to component versioning. org.kde.plasma.discover: Errors when loading the GUI Probably because of: discover/qml/ActionListItem.qml: icon: action.iconName discover/qml/SourcesPage.qml: icon: model.icon
Actually, more likely to be a bug in kirigami which got fixed(?) by just removing the offending line in 5.64: https://phabricator.kde.org/D24501
It would be great if you could confirm that the patch fixes the issue so we can close the bug.
Debugged a bit further: It was actually qqc2-desktop-style. qqc2-desktop-style was not rebuilt against the latest Qt version, so it used "import QtQuick.Templates 2.2" instead of 2.3 for its Components. That broke every import if QQC2 > 2.2... I can't think of a way to avoid this packaging issue upstream other than an ugly hack in libqqc2desktopstyleplugin.so, so closing as INVALID.
Brilliant, thanks for investigating.