[Evolution-users] O365 Calendar refresh and closing app problem

[Milan Crha]

On Thu, 2025-11-20 at 14:32 +0100, Manfred Jehle via evolution-users
wrote:
> On eMail O365 I get: "Faild to refresh folder" ...
> "SyncStateNotFound"

	Hi,
it looks like the information stored on the local machine no longer
corresponds to the server side, the server does not know what that sync
state corresponds to.

I guess the account type is Exchange Web Services. That's going to be
dropped, by Microsoft, for the office365.com site only, roughly in a
year. Newer versions of the Evolution (evolution-ews) offer "Microsoft
365" type, which will continue to work with the office365.com site.
By a newer version I mean 3.58.x series. The 3.58.2 release is planned
for tomorrow, then it takes some time till distros and flathub.org pick
it. You do not need to switch right now, you've time for several
months, I just mention it for reference.

Back to the error, I see the 3.56.0 (and possibly also 3.54.1/3.54.2)
begun to understand "SyncStateNotFound" error for the "Microsoft 365"
account type. Then maybe you do use "Microsoft 365" account type, not
"Exchange Web Services"? Anyway, the simplest option is to start from
scratch. You can either delete the account and add it again, or you can
remove ~/.cache/evolution/mail/<office365-account-uid>/ directory,
where it stores its data. Any remote mail account (including IMAP
accounts) store its data in there, thus be careful which one you will
remove. Do this when evolution is closed. Similarly there are more
account related data under the ~/.cache/evolution/, as you can see from
the subdirectories divided into sections reflecting Evolution views
(addressbooks, tasks, memos, calendars and mail). If those will claim
the problem then you'd need to clean up them as well, but unlike the
mail part these are running in the evolution-data-serer processes, thus
they need `evolution --force-shutdown` before fiddling with those
files. And to be sure also after that, but I guess you do not need to
do that.

The Flathub.org offers a newer version of the Evolution, the latest
stable, for a price of running in an isolated sandbox, thus not that
well cooperating with the host system in few parts of it. Not a
showstopper, it's perfectly fine when you use an older distribution and
need the newest Evolution (or other app).

	Bye,
	Milan