https://bugs.kde.org/show_bug.cgi?id=386985
--- Comment #72 from major-ma...@t-online.de --- Not sure if this issue is related: https://bugs.kde.org/show_bug.cgi?id=486871 But just in case, I tried again to add my Nextcloud calendar to Merkuro/ Akonadi, and I still get this "Invalid response of the driver" error message. The only message that I could find in the journal was: akonadiserver org.kde.pim.akonadiserver: Handler exception when handling command FetchCollections on connection akonadi_davgroupware_resource_6 (0x5a995aea2df0) : Hierarchical RID does not specify an existing collection I am using KDE Frameworks 6.12.0 -- You are receiving this mail because: You are the assignee for the bug.