Mac Calendar does not sync to google - error CalDAVMoveEntityQueueableOperation I have setup my calendar (Mountain Lion) to sync with google calendar, and it loads all items in without problems. But when I change something locally, I get an error message:

Access to “New Event” in “XXXXXX” in account “Google” is not permitted.

The server responded:
“403”
to operation CalDAVMoveEntityQueueableOperation.


This happens whenever I do local changes, confirm an event or add a new event.

Everything else is working nicely, including contacts.

Googling did only yield information about this error in relation to iCloud, which I am not using for calendars.
It could be something simple as your account settings.

Lets check if your password is missing from the CalDAV account setup.

(iCal->Preferences->Accounts->yours@you.com CalDav->Account Information->password). 

Enter your password even it it shows something there just to make sure it is correct one.

then Go Offline then Go Online under the Calendar menu and to synced it up.

Also go to the Google calender settings and make sure sync is enabled.