Re: [Evolution] Synchronisation problem

[Milan Crha <mcrha redhat com>]

On Fri, 2022-09-02 at 22:16 +0200, David Lemonnier wrote:
> > Le moteur « David » de la liste de tâches a rencontré une erreur.
> >
> > L’erreur signalée était « SQLite error code '8': attempt to write a
> > readonly database

        Hi,
I'm sorry, I do not speak (nor write) French. I hope it will be helpful
anyway.

There happened something to the underlying database, where the task
list stores its data. The usual location is either

   ~/.local/share/evolution/tasks/

for On This Computer tasks lists and

   ~/.cache/evolution/tasks/

for remote task lists (I speak of the task lists, because the error
message you pasted claims VTODO, which are tasks; you can get similar
errors for calendar, where the end of the path will not be `tasks`, but
it'll be `calendar`, and for memos it'll be `memos`).

The last time I saw a similar error was when I deleted the files from
the ~/.cache/evolution/tasks/ while the evolution-calendar-factory
process had been running. To fix that, I simply restarted the process,
either manually (`pkill -TERM evolution-calendar-factory`) or just by
`evolution --force-shutdown`. You should make sure Evolution itself is
not running when you are killing the background process.

Try to find out what deletes the files from the ~/.cache/evolution/ for
you. Maybe you've setup some regular automatic cleanup of the cache
data, which is harmful for the evolution-data-server itself, because
the data stored in the cache is re-downloaded on demand, whenever
missing.

        Bye,
        Milan