Pinterest IOS SDK getBoardPins响应代码=-1011“请求失败:错误请求(400)”

我收到了一个糟糕的退货请求

 PDKClient.sharedInstance().getBoardPins(boardID, fields: ["image", "description"], withSuccess: { (responseObject :PDKResponseObject!) -> Void in

            print(responseObject.pins().first!.descriptionText)

            })  { (err :NSError!) -> Void in
                print("error NSError: \(err)")
        }

正在从传递boardID:

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        if let dvc = segue.destinationViewController as? PinCollectionViewController {
           dvc.boardID = selectedBoard.identifier
    }

我想不通为什么?我知道我的电路板ID是正确的,并努力编码。我已经被认证了。。。

从SDK:

/**
 *  Get a list of pins for the given board. The response can be used to get
 *  the bext page of pins.
 *
 *  @param boardId      ID of the board
 *  @param fields       The pin fields that will be returned by the api
 *  @param successBlock Called when the API call succeeds
 *  @param failureBlock Called when the API call fails
 */
- (void)getBoardPins:(NSString *)boardId
              fields:(NSSet *)fields
         withSuccess:(PDKClientSuccess)successBlock
          andFailure:(PDKClientFailure)failureBlock;