日历显示两次。取消选择代理。稍后一切都消失了。

这显然是google的一个问题。他们声称是从事工作查看讨论 p>

我发现另一个苹果论坛页面上的谷歌线程致力于同样的问题：此处

I have always run with the assumption that Google delegates can be viewed by iCal and the calendar.app, but are not visible to us developers through the calendar framework, or EventKit.

Has this changed?

I have the problem too. Calendars show up twice. Deselect the delegates. A little later everything disappears.

Apparently its a problem on google's side. They claim to be "working on it" Check discussion

I found the google thread on another apple forum page devoted to the same problem:Here