更新日历邀请时出现重复事件409错误

Question

我们一直在使用相同的流程创建一年的Google日历邀请，如果日历邀请和ID已经存在，它将创建一个新的。

此代码相当静态，所以我想知道谷歌的API上是否发生了可能发生变化的事情？

这是返回的错误：

{
  "ExceptionDetail": {
    "HelpLink": null,
    "InnerException": null,
    "Message": "Google.Apis.Requests.RequestError The requested identifier already exists. [409] Errors [Message[The requested identifier already exists.] Location[ - ] Reason[duplicate] Domain[global]]",
    "Type": "Google.GoogleApiException"
  },
  "ExceptionType": "Google.GoogleApiException",
  "Message": "Google.Apis.Requests.RequestError The requested identifier already exists. [409] Errors [Message[The requested identifier already exists.] Location[ - ] Reason[duplicate] Domain[global]]",

以下是创建/更新邀请

的代码片段

  service = Authentication.AuthenticateOauth();
    //Google calendar ID for calendar request. 
    EventsResource.ListRequest checkIfMade = service.Events.List(newCalendar.calendarID);
    Events events = checkIfMade.Execute();
    var hasBeenMade = false;
    foreach (var eventItem in events.Items)
    {
        if (eventItem.Id == convertedID)
        {
            hasBeenMade = true;
            break;
        }
    }
    if (hasBeenMade)
    {
        EventsResource.UpdateRequest singleEventRequest = new EventsResource.UpdateRequest(service, myEvent, newCalendar.calendarID, myEvent.Id);
        singleEventRequest.SendNotifications = true;
        singleEventRequest.Execute();
        // Debug.Print(eventLink.HtmlLink);
    }
    else
    {
        EventsResource.InsertRequest singleEventRequest = new EventsResource.InsertRequest(service, myEvent, newCalendar.calendarID);
        singleEventRequest.SendNotifications = true;
        singleEventRequest.Execute();
        //Debug.Print(eventLink.HtmlLink);
    }
}