Facebook Graph Api apprequests邀请朋友令牌ID无效

Question

我正在按照此处的文档创建“邀请”apprequest。这是我的代码：

let req = FBSDKGraphRequest(graphPath: "me/apprequests", parameters: ["action_type": "INVITE", "message": "this guy is inviting you", "ids": "comma separated string of ids and invite tokens", HTTPMethod: "POST")
req.startWithCompletionHandler({ (connection: FBSDKGraphRequestConnection!, result: AnyObject!, error: NSError!) in
})

我收到了这个错误：

<FBSDKGraphRequestConnection: 0x13e531300, 1 request(s): (

parameters: {
    "access_token" = <a_token>;
    "action_type" = INVITE;
    format = json;
    ids = 
"<invite_token>";
        "include_headers" = false;
        message = "this guy is inviting you";
        sdk = ios;
    }>
    )>
    Error Domain=com.facebook.sdk.core Code=8 "(null)" UserInfo={com.facebook.sdk:FBSDKGraphRequestErrorCategoryKey=0, com.facebook.sdk:FBSDKGraphRequestErrorHTTPStatusCodeKey=400, com.facebook.sdk:FBSDKErrorDeveloperMessageKey=Invalid token: "me".  An ID has already been specified., com.facebook.sdk:FBSDKGraphRequestErrorGraphErrorCode=2500, com.facebook.sdk:FBSDKGraphRequestErrorParsedJSONResponseKey={
        body =     {
            error =         {
                code = 2500;
                "fbtrace_id" = At0eLFYxe68;
                message = "Invalid token: \"me\".  An ID has already been specified.";
                type = OAuthException;
            };
        };
        code = 400;
    }}