No more access to Google Calendar from Evolution since upgrade to 3.6 (Quantal)

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http://askubuntu.com – After I upgraded to Quantal, evolution asked to create a new identity (as if the previous config and prefs were vanished). When creating the calendar, it can't establish a connection with the server, and if I try to retrieve the calendars I receive an "http error: method not allowed"... Please help! (HowTos)