Google calendar added to akonadi but not visible in korganizer or merkuro

I am no longer able to use my google calendar with akonadi. I can add the calendar okay, either through korganizer, merkuro, or akonadiconsole; the configuration show all the calendards and task lists. When looking at the list of calendars in korganizer or merkuro, or resources in akonadiconsole, the Google Groupware is there and says ‘ready’. But the calendar is not visible in either korganizer or merkuro, that is it does not appear in the side panel where you can choose which calendar or task list to enable.

Akonadiconsole shows the following logging output:

[2025-10-27T18:13:09.112Z] akonadiserver org.kde.pim.akonadiserver Shutting down "akonadi_google_resource_0" ...
[2025-10-27T18:13:09.112Z] akonadiserver org.kde.pim.akonadiserver Shutting down "akonadi_google_resource_0" ...
[2025-10-27T18:13:09.112Z] akonadiserver org.kde.pim.akonadiserver Subscriber "AgentBaseChangeRecorder - 94803635865392" disconnected
[2025-10-27T18:13:09.112Z] akonadiserver org.kde.pim.akonadiserver Subscriber "AgentBaseChangeRecorder - 94803635865392" disconnected
[2025-10-27T18:13:09.130Z] akonadi_control org.kde.pim.akonadicontrol Service "org.freedesktop.Akonadi.Agent.akonadi_google_resource_0" owner changed from ":1.1036" to ""
[2025-10-27T18:13:09.130Z] akonadiserver org.kde.pim.akonadiserver ItemRetrievalManager lost connection to resource "org.freedesktop.Akonadi.Resource.akonadi_google_resource_0" , discarding cached interface
[2025-10-27T18:13:09.130Z] akonadiserver org.kde.pim.akonadiserver ItemRetrievalManager lost connection to resource "org.freedesktop.Akonadi.Resource.akonadi_google_resource_0" , discarding cached interface
[2025-10-27T18:13:09.130Z] akonadi_control org.kde.pim.akonadicontrol Service "org.freedesktop.Akonadi.Resource.akonadi_google_resource_0" owner changed from ":1.1036" to ""
[2025-10-27T18:13:09.138Z] akonadi_control org.kde.pim.akonadicontrol Restarting application '/usr/bin/akonadi_google_resource'.
[2025-10-27T18:13:09.614Z] akonadiserver org.kde.pim.akonadiserver Database "/home/Computer/.local/share/akonadi/akonadi.db" opened using driver "QSQLITE"
[2025-10-27T18:13:09.614Z] akonadiserver org.kde.pim.akonadiserver Database "/home/Computer/.local/share/akonadi/akonadi.db" opened using driver "QSQLITE"
[2025-10-27T18:13:09.614Z] akonadiserver org.kde.pim.akonadiserver New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f04141dc710) )
[2025-10-27T18:13:09.614Z] akonadiserver org.kde.pim.akonadiserver New notification connection (registered as Akonadi::Server::NotificationSubscriber(0x7f04141dc710) )
[2025-10-27T18:13:09.678Z] akonadiserver org.kde.pim.akonadiserver Subscriber Akonadi::Server::NotificationSubscriber(0x7f04141dc710) identified as "AgentBaseChangeRecorder - 94087030921424"
[2025-10-27T18:13:09.678Z] akonadiserver org.kde.pim.akonadiserver Subscriber Akonadi::Server::NotificationSubscriber(0x7f04141dc710) identified as "AgentBaseChangeRecorder - 94087030921424"
[2025-10-27T18:13:09.679Z] akonadi_control org.kde.pim.akonadicontrol Service "org.freedesktop.Akonadi.Resource.akonadi_google_resource_0" owner changed from "" to ":1.1088"
[2025-10-27T18:13:09.680Z] akonadi_control org.kde.pim.akonadicontrol Service "org.freedesktop.Akonadi.Agent.akonadi_google_resource_0" owner changed from "" to ":1.1088"
[2025-10-27T18:13:10.162Z] akonadiserver org.kde.pim.akonadiserver DATABASE ERROR:
[2025-10-27T18:13:10.162Z] akonadiserver org.kde.pim.akonadiserver DATABASE ERROR:
[2025-10-27T18:13:10.162Z] akonadiserver org.kde.pim.akonadiserver   Error code: "2067"
[2025-10-27T18:13:10.162Z] akonadiserver org.kde.pim.akonadiserver   Error code: "2067"
[2025-10-27T18:13:10.163Z] akonadiserver org.kde.pim.akonadiserver   DB error:  "UNIQUE constraint failed: CollectionTable.parentId, CollectionTable.name"
[2025-10-27T18:13:10.163Z] akonadiserver org.kde.pim.akonadiserver   DB error:  "UNIQUE constraint failed: CollectionTable.parentId, CollectionTable.name"
[2025-10-27T18:13:10.163Z] akonadiserver org.kde.pim.akonadiserver   Error text: "UNIQUE constraint failed: CollectionTable.parentId, CollectionTable.name Unable to fetch row"
[2025-10-27T18:13:10.163Z] akonadiserver org.kde.pim.akonadiserver   Error text: "UNIQUE constraint failed: CollectionTable.parentId, CollectionTable.name Unable to fetch row"
[2025-10-27T18:13:10.163Z] akonadiserver org.kde.pim.akonadiserver   Values: QList(QVariant(QString, "contactGroups/starred"), QVariant(QString, ""), QVariant(QString, "starred"), QVariant(qlonglong, 103), QVariant(qlonglong, 12), QVariant(bool, true), QVariant(int, 2), QVariant(int, 2), QVariant(int, 2), QVariant(bool, true), QVariant(int, -1), QVariant(int, -1), QVariant(bool, false), QVariant(QString, ""), QVariant(bool, true))
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver   Values: QList(QVariant(QString, "contactGroups/starred"), QVariant(QString, ""), QVariant(QString, "starred"), QVariant(qlonglong, 103), QVariant(qlonglong, 12), QVariant(bool, true), QVariant(int, 2), QVariant(int, 2), QVariant(int, 2), QVariant(bool, true), QVariant(int, -1), QVariant(int, -1), QVariant(bool, false), QVariant(QString, ""), QVariant(bool, true))
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver   Query: "INSERT INTO CollectionTable (remoteId, remoteRevision, name, parentId, resourceId, enabled, syncPref, displayPref, indexPref, cachePolicyInherit, cachePolicyCheckInterval, cachePolicyCacheTimeout, cachePolicySyncOnDemand, cachePolicyLocalParts, isVirtual) VALUES (:0, :1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14)"
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver   Query: "INSERT INTO CollectionTable (remoteId, remoteRevision, name, parentId, resourceId, enabled, syncPref, displayPref, indexPref, cachePolicyInherit, cachePolicyCheckInterval, cachePolicyCacheTimeout, cachePolicySyncOnDemand, cachePolicyLocalParts, isVirtual) VALUES (:0, :1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14)"
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver Error during insertion into table "CollectionTable" "UNIQUE constraint failed: CollectionTable.parentId, CollectionTable.name Unable to fetch row"
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver Error during insertion into table "CollectionTable" "UNIQUE constraint failed: CollectionTable.parentId, CollectionTable.name Unable to fetch row"
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver Failed to append Collection "starred" in resource "akonadi_google_resource_0"
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver Failed to append Collection "starred" in resource "akonadi_google_resource_0"
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver Error while handling command CreateCollection on connection akonadi_google_resource_0 (0x55bf3343baf0)
[2025-10-27T18:13:10.164Z] akonadiserver org.kde.pim.akonadiserver Error while handling command CreateCollection on connection akonadi_google_resource_0 (0x55bf3343baf0)

Has anyone seen this and found a fix? Just checking before filing a bug?

Hi all,

Same here!

No connection anymore with Google Calendar.

API change at Google side?

Cheers,

Leendert

The Netherlands