QTrackerDirectSyncResult: QSparqlError(4, "GDBus.Error:org.freedesktop.Tracker1.SparqlError.Constraint: Unable to insert multiple values for subject `urn:uuid:2f88bbb9-cff2-4dd3-817f-4e42a8faf222' and single valued property `nco:birthDate' (old_value: '<untransformable>', new value: '<untransformable>')", 1) (...) error code from SyncEvolution fatal error (remote, status 500): failure on target side @carddav of local sync (...) Status=20017, ProblemSource=LOCAL