Unable to save Event "foo" when calendar is stored on an imap folder

[S2]

Binary package hint: kmail

When the calendar, note, contact or task items are stored on an imap folder using kmail (kmail->configure kmail->Misc->Groupware->Enable IMAP Resource Folder Options) those items are not saved to the imap folder and kmail shows a messagebox: Unable to save Event "foo".
Standard output of kmail:
korganizer: WARNING: LockNull::lock() force success. Doesn't actually lock.
kresources: ERROR: Communication problem in ResourceKolab::addIncidence()

[S2 (simon-santoro-gmail)]

as stated on http://lists.kde.org/?t=111581271000001&r=1&w=2 the problem was that I was using an online imap folder, and not a disconnected one. maybe ubuntu could add a more meaningful messagebox like "This feature is supported only on disconnected IMAP accounts"?

[Harald Sitter (apachelogger)]

Closing in favor of KDE bug report, please refer there for updates. Thanks.