问腾讯物联网通信csdk3.2的例程gateway_sample子设备订阅和发布失败？

INF|2020/10/29 23:05:34|qcloud_iot_device.c|iot_device_info_set(50): SDK_Ver: 3.2.2, Product_ID: KSWSGNT6MJ, Device_Name: P_GATE_01
DBG|2020/10/29 23:05:34|HAL_TLS_mbedtls.c|HAL_TLS_Connect(200): Setting up the SSL/TLS structure...
DBG|2020/10/29 23:05:34|HAL_TLS_mbedtls.c|HAL_TLS_Connect(242): Performing the SSL/TLS handshake...
DBG|2020/10/29 23:05:34|HAL_TLS_mbedtls.c|HAL_TLS_Connect(243): Connecting to /KSWSGNT6MJ.iotcloud.tencentdevices.com/8883...
INF|2020/10/29 23:05:34|HAL_TLS_mbedtls.c|HAL_TLS_Connect(265): connected with /KSWSGNT6MJ.iotcloud.tencentdevices.com/8883...
INF|2020/10/29 23:05:34|mqtt_client.c|IOT_MQTT_Construct(118): mqtt connect with id: s3Ann success
DBG|2020/10/29 23:05:34|mqtt_client_subscribe.c|qcloud_iot_mqtt_subscribe(142): topicName=$gateway/operation/result/KSWSGNT6MJ/P_GATE_01|packet_id=2935
DBG|2020/10/29 23:05:34|gateway_api.c|_gateway_event_handler(34): gateway sub|unsub(3) success, packet-id=2935
DBG|2020/10/29 23:05:34|mqtt_client_publish.c|qcloud_iot_mqtt_publish(340): publish packetID=0|topicName=$gateway/operation/KSWSGNT6MJ/P_GATE_01|payload={"type":"describe_sub_devices"}
DBG|2020/10/29 23:05:35|gateway_common.c|_gateway_message_handler(163): msg payload: {"type":"describe_sub_devices","payload":{"devices":[{"product_id":"U348KQFJBF","device_name":"P_DEV_01"}]}}
bind list sub device nums: 1
bind list sub device info:
sub device: 00001  product_id: U348KQFJBF   device_name: P_DEV_01
DBG|2020/10/29 23:05:35|gateway_api.c|IOT_Gateway_Subdev_Online(131): there is no session, create a new session
DBG|2020/10/29 23:05:35|mqtt_client_publish.c|qcloud_iot_mqtt_publish(340): publish packetID=0|topicName=$gateway/operation/KSWSGNT6MJ/P_GATE_01|payload={"type":"online","payload":{"devices":[{"product_id":"U348KQFJBF","device_name":"P_DEV_01"}]}}
DBG|2020/10/29 23:05:35|gateway_common.c|_gateway_message_handler(163): msg payload: {"type":"online","payload":{"devices":[{"product_id":"U348KQFJBF","device_name":"P_DEV_01","result":0}]}}
INF|2020/10/29 23:05:35|gateway_common.c|_gateway_message_handler(222): client_id(U348KQFJBF/P_DEV_01), online result 0
DBG|2020/10/29 23:05:35|mqtt_client_subscribe.c|qcloud_iot_mqtt_subscribe(142): topicName=U348KQFJBF/P_DEV_01/data|packet_id=2936
DBG|2020/10/29 23:05:35|gateway_api.c|_gateway_event_handler(45): gateway timeout|nack(5) event, packet-id=2936
INF|2020/10/29 23:05:35|gateway_sample.c|_event_handler(56): subscribe nack, packet-id=2936
ERR|2020/10/29 23:05:35|mqtt_client_common.c|_handle_suback_packet(979): MQTT SUBSCRIBE failed, packet_id: 2936 topic: U348KQFJBF/P_DEV_01/data
ERR|2020/10/29 23:05:35|gateway_sample.c|_subscribe_subdev_topic_wait_result(168): MQTT error: -108
ERR|2020/10/29 23:05:35|gateway_sample.c|main(371): Subdev Subscribe Topic Failed: -108

E:\mycode\VsWork\qcloud\output\debug\bin\gateway_sample.exe (进程 11412)已退出，代码为 -108。
要在调试停止时自动关闭控制台，请启用“工具”->“选项”->“调试”->“调试停止时自动关闭控制台”。
按任意键关闭此窗口. . .

int main(int argc, char **argv)
{
    int   rc     = QCLOUD_ERR_FAILURE;
    void *client = NULL;        
    IOT_Log_Set_Level(eLOG_DEBUG);
    // parse arguments for device info file and loop test;
    rc = parse_arguments(argc, argv);
    if (rc != QCLOUD_RET_SUCCESS) {
        Log_e("parse arguments error, rc = %d", rc);
        return rc;
    }
    GatewayDeviceInfo gw_dev_info;
    rc = HAL_GetGwDevInfo((void *)&gw_dev_info);
    if (QCLOUD_RET_SUCCESS != rc) {
        Log_e("Get gateway dev info err,rc:%d", rc);
        return rc;
    }   
    GatewayInitParam init_params = DEFAULT_GATEWAY_INIT_PARAMS;
    _setup_gw_init_params(&init_params, &gw_dev_info);

    client = IOT_Gateway_Construct(&init_params);
    if (client == NULL) {
        Log_e("client constructed failed.");
        return QCLOUD_ERR_FAILURE;
    }
    // make sub-device online
    GatewayParam gw_param = DEFAULT_GATEWAY_PARAMS;
    gw_param.product_id   = gw_dev_info.gw_info.product_id;
    gw_param.device_name  = gw_dev_info.gw_info.device_name;

    DeviceInfo *sub_dev_info = gw_dev_info.sub_dev_info;
    
    // to bind a new sub device
    DeviceInfo new_sub_dev = {0};
    if (new_subdev_file) {
        do {
            rc = HAL_GetDevInfoFromFile(new_subdev_file, &new_sub_dev);
            if (rc) {
                Log_e("get devinfo from file failed: %d", rc);
                break;
            }

            rc = IOT_Gateway_Subdev_Bind(client, &gw_param, &new_sub_dev);
            if (rc == QCLOUD_RET_SUCCESS || rc == GATEWAY_RC_REPEAT_BIND) {
                Log_i("bind sub-device %s-%s success", new_sub_dev.product_id, new_sub_dev.device_name);
                sub_dev_info = &new_sub_dev;
                break;
            } else {
                Log_e("bind subdev failed: %d", rc);
            }
        } while (0);
    }

    gw_param.subdev_product_id  = sub_dev_info->product_id;
    gw_param.subdev_device_name = sub_dev_info->device_name;
    // get bind list from cloud platform
    _get_gw_subdev_bindlist(client, &gw_param);

    rc = IOT_Gateway_Subdev_Online(client, &gw_param);
    if (rc != QCLOUD_RET_SUCCESS) {
        Log_e("IOT_Gateway_Subdev_Online fail.");
        return rc;
    }    
     //gateway proxy loop for sub-device
     //subscribe sub-device topic    程序就是运行到这一句退出， Subdev Subscribe Topic Failed: -108
    rc = _subscribe_subdev_topic_wait_result(client, "data", QOS0, &gw_param);
    if (rc) {
        Log_e("Subdev Subscribe Topic Failed: %d", rc);
        return rc;
    }

    do {
        
        // get bind list from cloud platform
        if (sg_loop_count % 60 == 0) {
            _get_gw_subdev_bindlist(client, &gw_param);            
        }
        
        // publish msg to sub-device topic
        rc = _publish_subdev_msg(client, "data", QOS1, &gw_param);
        if (rc < 0) {
            Log_e("IOT_Gateway_Publish fail.");
        }
        
        rc = IOT_Gateway_Yield(client, 200);

        if (rc == QCLOUD_ERR_MQTT_ATTEMPTING_RECONNECT) {
            HAL_SleepMs(1000);
            continue;
        } else if (rc != QCLOUD_RET_SUCCESS && rc != QCLOUD_RET_MQTT_RECONNECTED) {
            Log_e("exit with error: %d", rc);
            break;
        }

        HAL_SleepMs(1000);

    } while (--sg_loop_count > 0);

...
}

{
    "auth_mode":"KEY",
    
    "productId":"KSWSGNT6MJ    ",
    "productSecret":"kJkXtJpPukRsOlEHJ3zIIPDx",
    "deviceName":"P_GATE_01",

    "key_deviceinfo":{    
        "deviceSecret":"DQ0JHhYDUP3vK3oiINu2bg=="
    },
    "cert_deviceinfo":{
        "devCertFile":"YOUR_DEVICE_CERT_FILE_NAME",
        "devPrivateKeyFile":"YOUR_DEVICE_PRIVATE_KEY_FILE_NAME"
    },
    "subDev":{
        "sub_productId":"U348KQFJBF",
        "sub_devName":"P_DEV_01"
    }
}