Google plus API获取C＃.net库中的活动列表

Question

我正在使用.net Google Plus API，我想获取指定个人资料（页面/用户......）的活动列表。

我有这个代码，我可以在线获取

 var provider = new NativeApplicationClient(GoogleAuthenticationServer.Description);
    provider.ClientIdentifier = GoogleIdentifier;
    provider.ClientSecret = GoogleSecret;
 ActivitiesResource.Collection collection = new ActivitiesResource.Collection();
  var service = new PlusService();
    service.Key = GoogleKey;
    ActivitiesResource.ListRequest list = service.Activities.List(ProfileID, collection);
    ActivityFeed activityFeed = list.Fetch();
    int count = activityFeed.Items.Count;

在这一行：

ActivityFeed activityFeed = list.Fetch();

我收到以下错误：

An item with the same key has already been added.

Answer 1

请求的密钥无效。只需把正确的ClientSecret＆amp; ClientIdentifier。