Can import Google calendar, but not sync

[janaxhell]

I'm on v25.0.6 inside AIO. My domain passes through Nginx Proxy Manager.
I have setup the Google Synchronization following this video
then I moved to Personal Settings and connected to my Google account.

I can import everything, but cannot sync. After importing, Nextcloud calendar populated with all Google events, but when I tried to add a couple of new test events to Google, they did not sync to Nextcloud. When I instead clicked Import again, they appeared.

The logging is full of these errors repeated over and over https://pastebin.com/9SRWmdSz

As a side note, I cannot sync from DAVx5 app either, despite permission granted from Nextcloud android app.
So my Nextcloud can see and import the contents of my Google account, but not sync. What's wrong?

Doing more tests, I can now sync between

Nextcloud <---> DAVx5 <---> Simple Calenader

but not Google Calendar in any direction, only import

[lroyb]

if you read the markdown file, it says that it is a fork of the 'google intergration' app. Most importantly it says that ' it should not be used as well as'. So, I disabled the google intergration app, leaving the google Synchronization app enabled. and it worked first try afterward.

[janaxhell]

I posted this 4 months ago, I have updated NC several times since and i'm on Nextcloud Hub 5 (27.0.2).
As of now I cannot find Google Integration anywhere, but DAVx5 and Google Synchronization still give errors all the time like this

Failed to get number of Google photos: "ServerException|ClientException, message:Client error: GET
https://photoslibrary.googleapis.com/v1/albums?pageSize=50resulted in a401 Unauthorized response:\n{\n \"error\": {\n \"code\": 401,\n \"message\": \"Request had invalid authentication credentials. Expected OAuth 2 access (truncated...)\n status code: 401"

I got tired and just ignore it.

[lroyb]

By the look from the above message, have you created the oauth2 app with the correct Google api's enabled. Then successfully logged into your Google account through nextcloud, which you can then give nextcloud access to the oauth2 app?

[janaxhell]

Of course, but it periodically forgets about it and wants to grant access again. That is so annoying I gave up.

[MarcelRobitaille]

Hi everyone. Sorry I haven't been around. For some reason, even though I own this fork, it was not set up to send me notifications on issues and PRs. Sorry about that! I've signed up now.

Sorry you are experiencing this issue. I will look into it.

[MarcelRobitaille]

Could you please try the latest release and let me know if you are still experiencing this.

[janaxhell]

@MarcelRobitaille

Hi, I have just installed and tried the latest version available. This is what happened:

• Sync replied "Successfully registered background job", but nothing really happened
• Import imported already existing events, but as duplicates 1 hour earlier than correct one. But from what I seem to understand, not all of them, only those that I added as repeating events before Solar Time change in autumn. Those that I added after have the correct time.

No error message from Google, but now I have Nextcloud Calendar populated with tons of wrong duplicate events.
The events with double entries cyan/blue in the picture have the wrong time in the cyan block and right time in the blue block.

EDIT Sorry, my bad: all the cyan blocks are from Baikal service, which for some reason set the wrong time. But this also means that neither Sync nor Import had any effect toward my Gmail account. Nothing has been synced nor imported from there.

[MarcelRobitaille]

@janaxhell what happens when you press the import button? Are there any logs you could share?

[janaxhell]

I use Nextcloud AIO, from which service do you want me to check the logs?

nextcloud-aio-apache
nextcloud-aio-collabora
nextcloud-aio-database
nextcloud-aio-fulltextsearch
nextcloud-aio-imaginary
nextcloud-aio-mastercontainer
nextcloud-aio-nextcloud
nextcloud-aio-notify-push
nextcloud-aio-redis

The nextcloud-aio-nextcloud service is showing right now this:

2024-02-29 17:29:55 Importing it.italian#holiday@group.v.calendar.google.com... done. Added 
2024-02-29 17:29:56 Importing XXXXXX@XXXXXX... done. Added 0
2024-02-29 17:30:08 Importing XXXXXX@XXXXXX... done. Added 
2024-02-29 17:34:55 Importing XXXXXX@XXXXXX... done. Added 0
2024-02-29 17:34:59 Importing XXXXXX@XXXXXX... done. Added 
2024-02-29 17:34:59 Importing it.italian#holiday@group.v.calendar.google.com... done. Added 
2024-02-29 17:39:55 Importing XXXXXX@XXXXXX... done. Added 0
2024-02-29 17:39:59 Importing it.italian#holiday@group.v.calendar.google.com... done. Added 
2024-02-29 17:39:59 Importing XXXXXX@XXXXXX... done. Added 
2024-02-29 17:44:55 Importing XXXXXX@XXXXXX... done. Added 0
2024-02-29 17:44:58 Importing it.italian#holiday@group.v.calendar.google.com... done. Added 
2024-02-29 17:44:59 Importing XXXXXX@XXXXXX... done. Added 
2024-02-29 17:50:04 Importing it.italian#holiday@group.v.calendar.google.com... done. Added 
2024-02-29 17:50:04 Importing XXXXXX@XXXXXX... done. Added 0
2024-02-29 17:50:08 Importing XXXXXX@XXXXXX... done. Added 
2024-02-29 17:54:55 Importing it.italian#holiday@group.v.calendar.google.com... done. Added 
2024-02-29 17:54:55 Importing XXXXXX@XXXXXX... done. Added 0

but in the NC GUI I haven't enabled the Sync thick for holiday/festivity, only my own gmail address.

[MarcelRobitaille]

Thank you for the logs. Just to be very clear because it's hard to tell from your language:

Please press this button:

You should see something like this in the top right:

For me, everything is up to date, so I see '0 events successfully imported".
You can think of the button "Sync calendar" as automatically pressing "Import calendar" every 5 minutes. "Import calendar" is easier to troubleshoot, so that's why I want to see if it works first.

[janaxhell]

Yes, that appears to me as well and the first time I did it today I saw a number different from zero, like 24 events added:

But it is incoherent with what I see:

On the left side panel you see that Personal (= my gmail account) is blue and Baikal (external caldav) is cyan. When I Import from gmail, I see cyan blocks being added instead of the blue ones. I have configured Google Sync to use my gmail account, not Baikal, that's to sync the calendar on my phone. Maybe I should completely clear Nextcloud calendar and try gain from scratch, but I'm going offline now and won't be able to try again before tomorrow afternoon.

[MarcelRobitaille]

Thanks for the updates. That's weird. It should create a dedicated calendar for each calendar you sync from google. You should have a new calendar blah@google.com. It should not modify Personal or Baikal at all. If it does, that's very bad.

Could you please press the "Delete all background jobs" button in the admin page?

[janaxhell]

Deleted all background jobs, then
I have deleted all my calendars and also had to logout/login to my Google account (prior to that I could import 0 events).
I have been able to Import my calendar, but I confirm that all events created before Legal/Solar time last october are set 1 hour earlier than the correct one.
Sync works correctly, but I wonder what time will it set at the end of march when we'll have again Legal/Solar time change.

[MarcelRobitaille]

So everything works correctly except for dailight savings time? Is it possible your nextcloud locale / time zone settings are misconfigured?

[janaxhell]

No, because everything else is ok and the calendar events too showed the correct time when I first imported them many months ago. Also, new test events that I have created are synced with the correct time, now that I am in the same time window. I have checked right now, and the events time is wrong from OCT 31 2023 (included) which is exactly the first date after the Legal/Solar time change. I have created the events for my university lessons before that date covering the entire year (on Google calandar), so the dates and times are cloned for all of them. But as you can see from the pictures, in NC they are shown 1 hour earlier. If the locale was wrong, they would be either all wrong, or all right. But they are not across Solar/Legal time change.

Also, now that I'm looking at the pictures, the LINGUA GIAPPONSE 1 event on Wednesday present in the NC calendar does not exist in the Google Calendar, so I have no idea where that has been imported from.