登录游戏中心但返回错误

Question

我正在尝试使用iOS 8登录游戏中心，但此错误

   Error is Error Domain=GKErrorDomain Code=15 "The requested operation could not be completed because
     this application is not recognized by Game Center." UserInfo=0x17446c0c0

    {
    NSLocalizedDescription=The requested operation could not be completed because this application is not recognized by Game Centre.
    }