Error "CoreDAVHTTPStatusErrorDomain error 403"

Question

Hello,
If I like to synchronize my contacts with the iCloud I just get an exclamation mark in a yellow triangle. If I click the triangle I get the message
Der Vorgang konnte nicht abgeschlossen werden. (CoreDAVHTTPStatusErrorDomain-Fehler 403.)
[translated like - "operation not completed (CoreDAVHTTPStatusErrorDomain-error 403.)]
I can use the other services of ICloud - like calendar, Photostream without problems.
I can also use all services from iPhone and iPad.
Is their anybody who can help me?
Thanks

Answer 1

I think I finally found the solution.
Quit Calendar (10.8) or iCal (pre 10.8)
Backup ~/Library/Application Support/AddressBook
Quit Contacts (10.8) or Address Book (pre 10.8)
Go to the "Mail, Contacts & Calendars" Preference Pane
Under iCloud, deactivate Address Book syncing, making sure to select the option to delete contacts on your Mac
Delete the ~/Library/Application Support/AddressBook folder
Go to the "Mail, Contacts & Calendars" Preference Pane
Under iCloud, activate Contact/Address Book syncing and merge (note that there's nothing to merge)
Launch Contacts (10.8) or Address Book (pre 10.8) and watch your contacts synchronize
Launch Calendar (10.8) or iCal (pre 10.8)
After trying everything else I've read in these discussion forums, this procedure finally did the trick! I can now delete events again, add attendees to events, and perform other functions I couldn't previously.