Cannot remove entry - "This item has recently been changed on the server"

[Steve Phelps]

Every time I start Thunderbird, I am prompted with a dialog that refers to a specific event in my diary, which states:

"This item has recently been changed on the server.  Deleting this item will cause loss of the changes made on the server."

The options are 'Discard my changes and reload' or 'Delete anyway'.  If I choose the former, the dialog reappears.  If I choose to delete anyway, I am prompted again on the next sync with the same dialog referring to the same event.

I have tried deleting the event directly from google calendar using the web interface.  I have also tried resetting the calendar's cache, and restarting thunderbird.  Disabling the plugin stops the prompt, but the problem reoccurs when I enable the plugin again.

Any suggestions for resolving this issue greatly appreciated.

[Steve Phelps]

Resolved: deleting the 'calendar-data/' directory in my profile and unsubscribing and then resubscribing to the offending google calendar fixed the problem.

[Linas Cepulis]

I did it the same way. It works

[almostblondie]

Hi, where can I find the "calendar-data" directory on my computer? I am not a pro user and I do not know how to do these steps. Could you please explain (step-by-step would be great). Thanks a lot.

[almostblondie]

Hi, I found it! (The problem was so annoying, that I could not wait to solve it!)

FOR THE ONES AFTER ME:
Close Thunderbird.
Search for Thunderbird on your PC. When you found: C:>Thunderbird>Profiles>ddsfhlsdfj>calendar-data
Delete all the contents.
Open Thunderbird Calendar.
Right-click on the offending calendar e.g. ...@gmail.com (and all the added calendars one-by-one) and select Unsubscribe.
Click on the empty space below the calendar section and select New Calendar
Select from network
Your gmail address will be promted or write your email address where you want to use the calendar from.
Select all the calendars you want to (re)add to Thunderbird Lightning.
DONE!

GOOD LUCK GUYS!

[Kim Borgen]

Had exactly this problem, and did as described here. Problem solved. Thanks, guys.

[Allan Rube]

On Wednesday, November 22, 2017 at 8:40:55 AM UTC-5, Kim Borgen wrote:

Had exactly this problem, and did as described here. Problem solved. Thanks, guys.

I have the same problem on a Mac. The folder  Does anyone have a solution? I can delete a folder called calendar-data but there is no file/folder called Thunderbird Calendar to right-click pn.

[Eric Burgstahler]

Hi everybody,

Before trying this solution, I have a question : does it preserve all the calendar content (I have many years archive and I don't want to loose them)? Or, after correcting the bug, do we have an empty calendar (or a calendar with just what remains on Google calendar).

Thanks !

[Jeremy Corbett]

I'm having the same problem myself, but the proposes solutions are not helping. I've removed the google account, deleted the account data, but as soon as I add the google account back the issue immediately pops back up again.

Can anyone help? I basically can't use Thunderbird at all because of this.

[Giogio Pietrobon]

I guess we can't  expect them to fix anything soon.

This has been a big problem for me.and nothing works.

Ex new calendar, deleted directory, reinstalled Thunderbrd.

Nothing works. Immediately I have it. I did not even apply any change, and yet it claims I did.

Right after all these operation it does it again. Something has changed on google side or Thunderbird side.

G

[Chris Chaloner (gmail account)]

I managed to go back to version 60.9.1, where everything works.  I plan to stay there until this is fixed!

Chris

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[Giogio Pietrobon]

:) Thank you. Good to know there is a solution. I am talking it with their support and update here if I find out anything..

On Monday, March 2, 2020 at 10:06:05 AM UTC-8, Chris Chaloner (gmail account) wrote:

I managed to go back to version 60.9.1, where everything works.  I plan to stay there until this is fixed!

Chris

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On 02/03/2020 18:01, Giogio Pietrobon wrote:

I guess we can't  expect them to fix anything soon.

This has been a big problem for me.and nothing works.

Ex new calendar, deleted directory, reinstalled Thunderbrd.

Nothing works. Immediately I have it. I did not even apply any change, and yet it claims I did.

Right after all these operation it does it again. Something has changed on google side or Thunderbird side.

G

On Monday, September 23, 2019 at 5:32:16 AM UTC-7, Jeremy Corbett wrote:

I'm having the same problem myself, but the proposes solutions are not helping. I've removed the google account, deleted the account data, but as soon as I add the google account back the issue immediately pops back up again.

Can anyone help? I basically can't use Thunderbird at all because of this.

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To unsubscribe from this group and stop receiving emails from it, send an email to provider-for-google-calendar+unsub...@googlegroups.com.

[Harshit Garg]

Hi is there any update on this. I'm still facing this issue on Thunderbird 78.6.1 on Manjaro KDE.