Interesting. I certainly get more verbiage using sudo, but still no discover:
sudo plasma-discover --backends packagekit-backend
[sudo] password for bob:
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
fetch ratings! true
adding empty sources model QStandardItemModel(0x5710d93e0c30)
QQmlApplicationEngine failed to load component
qrc:/qml/DiscoverWindow.qml:167:26: Type Kirigami.NavigationTabBar unavailable
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/NavigationTabBar.qml:1:1: Expected a qualified name id
org.kde.plasma.discover: Errors when loading the GUI
KCrash: crashing… crashRecursionCounter = 2
KCrash: Application Name = plasma-discover path = /usr/bin pid = 450822
KCrash: Arguments: /usr/bin/plasma-discover --backends packagekit-backend
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
org.kde.drkonqi: Mapping found despite product information being provided by the application. Consider removing the mapping entry “plasma-discover”
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/ContextDrawer.qml:135:9: QML ListView: Binding loop detected for property “topMargin”
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to ‘/tmp/runtime-root’
[1]+ Stopped sudo plasma-discover --backends packagekit-backend
Without the sudo I get:
bob$ plasma-discover --backends packagekit-backend
fetch ratings! true
adding empty sources model QStandardItemModel(0x631b7ffcf2b0)
QQmlApplicationEngine failed to load component
qrc:/qml/DiscoverWindow.qml:167:26: Type Kirigami.NavigationTabBar unavailable
file:///usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kirigami.2/NavigationTabBar.qml:1:1: Expected a qualified name id
org.kde.plasma.discover: Errors when loading the GUI
KCrash: crashing… crashRecursionCounter = 2
KCrash: Application Name = plasma-discover path = /usr/bin pid = 451278
KCrash: Arguments: /usr/bin/plasma-discover --backends packagekit-backend
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi
[2]+ Stopped plasma-discover --backends packagekit-backend
HTH …