SUMMARY When logging into plasma, a "placeholder" icon (the one that is e.g. used for a new file of unknown type) appears in the system tray. Clicking it informs the user of an error that occured when loading vaults. Note that I do not and have never actually used the vault functionality. STEPS TO REPRODUCE 1. Login to plasma 2. Observe placeholder icon in system tray 3. Click it OBSERVED RESULT The following error is shown: file:///usr/share/plasma/plasmoids/org.kde.plasma.vault/contents/ui/main.qml:102:36: Cannot assign object of type "QQC2.Action" to property of type "Action_QMLTYPE_88*" as the former is neither the same as the latter nor a sub-class of it. EXPECTED RESULT (Not sure, I never used vaults) SOFTWARE/OS VERSIONS Linux: 6.9.2-arch1-1 (64-bit) KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.2.0 Qt Version: 6.7.1
Same problem with weather, except that the icon appears fine.
same problem with kdeconnect the folowwing error is shown : file:///usr/share/plasma/plasmoids/org.kde.plasma.vault/contents/ui/main.qml:102:36: Cannot assign object of type "QQC2.Action" to property of type "Action_QMLTYPE_129*" as the former is neither the same as the latter nor a sub-class of it. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.2.0 Qt Version: 6.7.1 Kernel Version: 6.9.2-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 2600X Six-Core Processor Memory: 15.5 Gio of RAM Graphics Processor: NVIDIA GeForce GTX 1650 SUPER/PCIe/SSE2
*** This bug has been marked as a duplicate of bug 487904 ***
*** This bug has been marked as a duplicate of bug 487464 ***
YES ! a priori, I solved my problem After a laborious search, and by comparing the installations of the different users of my computer, I found the faulty file which is: . config/plasma-org.kde.plasma.desktop-appletsrc by deleting it, I was able to recover access to Vault and KDEConnect Be careful : you have to redo your panel setup afterwards. See : https://bbs.archlinux.org/viewtopic.php?id=296229