production.ERROR：exception＆＃39; GuzzleHttp \ Exception \ RequestException＆＃39;

Question

我在这部分中有错误somoene向我解释

 $error = isset($connectionErrors[$easy->errno])
        ? new ConnectException($message, $easy->request, null, $ctx)
        : new RequestException($message, $easy->request, $easy->response, null, $ctx);

    return new RejectedPromise($error);
}