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最近我在我的应用程序中通过 facebook 集成了授权。

我的授权代码：

AppDelegate *mainDelegate = (AppDelegate*)[[UIApplication sharedApplication] delegate];

if (!mainDelegate.session || mainDelegate.session.state != FBSessionStateCreated)
{
    mainDelegate.session = [[FBSession alloc] initWithPermissions:[NSArray arrayWithObjects:@"email", @"offline_access", @"user_birthday", @"user_photos", @"publish_actions", @"publish_stream", @"read_stream", nil]];

}

[mainDelegate.session openWithCompletionHandler:^(FBSession *session,
                                                  FBSessionState status,
                                                  NSError *error)
{
    FBSession.activeSession = session;
    if(mainDelegate.session.isOpen)
    {
        //getting access token
    }
}];

但在那之后我收到：

    FBSDKLog: Error Domain=com.facebook.sdk Code=5 "The operation couldn’t be completed. (com.facebook.sdk error 5.)" UserInfo=0x17e5aa80 {com.facebook.sdk:HTTPStatusCode=400, com.facebook.sdk:ParsedJSONResponseKey={
        body =     {
            error =         {
                code = 100;
                message = "(#100) The parameter 'custom_events' or 'custom_events_file' is required for the 'CUSTOM_APP_EVENTS' activity";
                type = OAuthException;
            };
        };
        code = 400;
        headers =     (
                    {
                name = "Access-Control-Allow-Origin";
                value = "*";
            },
                    {
                name = "Cache-Control";
                value = "no-store";
            },
                    {
                name = Connection;
                value = close;
            },
                    {
                name = "Content-Type";
                value = "text/javascript; charset=UTF-8";
            },
                    {
                name = Expires;
                value = "Sat, 01 Jan 2000 00:00:00 GMT";
            },
                    {
                name = Pragma;
                value = "no-cache";
            },
                    {
                name = "WWW-Authenticate";
                value = "OAuth \"Facebook Platform\" \"invalid_request\" \"(#100) The parameter 'custom_events' or 'custom_events_file' is required for the 'CUSTOM_APP_EVENTS' activity\"";
            },
                    {
                name = "x-fb-loadmon";
                value = "0,49.16,50";
            }
        );
    }, com.facebook.sdk:ErrorSessionKey=<FBSession: 0x17eac610, state: FBSessionStateOpen, loginHandler: 0x17eeb1d0, appID: 123456789012345, urlSchemeSuffix: , tokenCachingStrategy:<FBSessionTokenCachingStrategy: 0x17ecef60>, expirationDate: 2014-01-07 10:09:59 +0000, refreshDate: 2013-11-08 10:28:09 +0000, attemptedRefreshDate: 0001-12-30 00:00:00 +0000, permissions:(
        email,
        "offline_access",
        "user_birthday",
        "user_photos",
        "publish_actions",
        "publish_stream",
        "read_stream"
    )>}

我禁用了此处提供的“安装见解”和“移动 SDK 见解”：“CUSTOM_APP_EVENTS”活动需要参数“custom_events”或“custom_events_file”，但我仍然看到此错误我在一周前禁用了见解，因此服务器已经更新的设置。

但是尽管有这个错误，授权工作正常，我成功地获得了访问令牌和所有需要的数据。但是我担心这个，如果这个错误将来会带来问题。我怎样才能避免这种情况？为什么会出现这个错误？

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