no default scheduling folder for account ‘Local Folders’ could be determined
Local folder’ does not show up in Accounts.
If you still have this error, see my post below for things to try to fix that for an eg: IMAP account where Local folders doesn’t show up in accounts.
Also see @rampoxo post for his solution which sounded like “was to do with his account type” on the server end which didn’t include a calendar but does now changing to a standard account.