Matter initial error?

[vex87]

Hi all,

I'm building my project based on the ESP-Matter "light" example. During the startup process, I encountered the following log error:

E (1576) chip[SVR]: Cound not find endpoint index for endpoint 0

Here is a snippet of my log for context:

I (1456) chip[FP]: Fabric index 0x2 was retrieved from storage. Compressed FabricId 0xB1D9D3BBB8CD28E0, FabricId 0x00000000A4E58F3C, NodeId 0x00000000948D4E66, VendorId 0x1384
I (1466) chip[DMG]: AccessControl: initializing
...
I (1576) chip[SVR]: Server Listening...
E (1576) chip[SVR]: Cound not find endpoint index for endpoint 0
I (1576) esp_matter_core: Dynamic endpoint 0 added
I (1646) app_main: Matter server started successfully
I (1646) app_main: Post-start: Checking endpoint 0 availability...
I (1646) app_main: Post-start: Root endpoint 0 is available
...

Here is my code:

extern "C" void app_main()
{
    esp_err_t err = ESP_OK;

    /* Initialize the ESP NVS layer */
    nvs_flash_init();

    MEMORY_PROFILER_DUMP_HEAP_STAT("Bootup");

    /* Initialize driver */

    /* Create a Matter node and add the mandatory Root Node device type on endpoint 0 */
    node::config_t node_config;

    strncpy(node_config.root_node.basic_information.node_label, "Fan", sizeof(node_config.root_node.basic_information.node_label) - 1);

    // node handle can be used to add/modify other endpoints.
    node_t *node = node::create(&node_config, app_attribute_update_cb, app_identification_cb);
    ABORT_APP_ON_FAILURE(node != nullptr, ESP_LOGE(TAG, "Failed to create Matter node"));

    MEMORY_PROFILER_DUMP_HEAP_STAT("node created");

    endpoint::fan::config_t fan_config = {};
    // endpoint handles can be used to add/modify clusters.
    endpoint_t *fan_endpoint = endpoint::fan::create(node, &fan_config, ENDPOINT_FLAG_NONE, nullptr);
    ABORT_APP_ON_FAILURE(fan_endpoint != nullptr, ESP_LOGE(TAG, "Failed to create fan endpoint"));

    fan_endpoint_id = endpoint::get_id(fan_endpoint);
    ESP_LOGI(TAG, "Fan created with endpoint_id %d", fan_endpoint_id);

    // Add OnOff cluster to fan endpoint for power control
    cluster::on_off::config_t on_off_config = {};
    cluster_t *on_off_cluster = cluster::on_off::create(fan_endpoint, &on_off_config, CLUSTER_FLAG_SERVER);
    ABORT_APP_ON_FAILURE(on_off_cluster != nullptr, ESP_LOGE(TAG, "Failed to create OnOff cluster"));

    // Get FanControl cluster
    cluster_t *fan_control_cluster = cluster::get(fan_endpoint_id, FanControl::Id);
    ABORT_APP_ON_FAILURE(fan_control_cluster != nullptr, ESP_LOGE(TAG, "Failed to get FanControl cluster"));

    // Add multi-speed feature to FanControl cluster
    cluster::fan_control::feature::multi_speed::config_t multi_speed_config = {};
    multi_speed_config.speed_max = 10;
    multi_speed_config.speed_setting = 1;
    multi_speed_config.speed_current = 1;
    err = cluster::fan_control::feature::multi_speed::add(fan_control_cluster, &multi_speed_config);
    ABORT_APP_ON_FAILURE(err == ESP_OK, ESP_LOGE(TAG, "Failed to add multi-speed feature, err:%d", err));

#ifdef CONFIG_ENABLE_SET_CERT_DECLARATION_API
    auto *dac_provider = get_dac_provider();
#ifdef CONFIG_SEC_CERT_DAC_PROVIDER
    static_cast<ESP32SecureCertDACProvider *>(dac_provider)->SetCertificationDeclaration(cdSpan);
#elif defined(CONFIG_FACTORY_PARTITION_DAC_PROVIDER)
    static_cast<ESP32FactoryDataProvider *>(dac_provider)->SetCertificationDeclaration(cdSpan);
#endif
#endif // CONFIG_ENABLE_SET_CERT_DECLARATION_API

    /* Matter start */
    err = esp_matter::start(app_event_cb);
    ABORT_APP_ON_FAILURE(err == ESP_OK, ESP_LOGE(TAG, "Failed to start Matter, err:%d", err));

    MEMORY_PROFILER_DUMP_HEAP_STAT("matter started");

    /* Starting driver with default values */
    // app_driver_fan_set_defaults(fan_endpoint_id);

#if CONFIG_ENABLE_ENCRYPTED_OTA
    err = esp_matter_ota_requestor_encrypted_init(s_decryption_key, s_decryption_key_len);
    ABORT_APP_ON_FAILURE(err == ESP_OK, ESP_LOGE(TAG, "Failed to initialized the encrypted OTA, err: %d", err));
#endif // CONFIG_ENABLE_ENCRYPTED_OTA

#if CONFIG_ENABLE_CHIP_SHELL
    esp_matter::console::diagnostics_register_commands();
    esp_matter::console::wifi_register_commands();
    esp_matter::console::factoryreset_register_commands();
#if CONFIG_OPENTHREAD_CLI
    esp_matter::console::otcli_register_commands();
#endif
    esp_matter::console::init();
#endif

    while (true)
    {
        MEMORY_PROFILER_DUMP_HEAP_STAT("Idle");
        vTaskDelay(10000 / portTICK_PERIOD_MS);
    }

Although the error appears, the rest of the startup seems to proceed normally, and the Matter server reports success.

Questions:

• What does this error mean and what could cause it?
• Is this something I should be concerned about for production devices?
• Are there recommended ways to resolve or suppress this error?

Any insights or suggestions would be greatly appreciated!

Thanks!

[Jerry-ESP]

What does this error mean and what could cause it?

• This error means when checking ota provider cluster server, there isn't server side exist, so print a error log, in the example, only support ota requester device, which include ota requester server cluster and ota provider client cluster.

Is this something I should be concerned about for production devices?

• No, this has no impact on the device, you can ignore this log.

Are there recommended ways to resolve or suppress this error?

• We will fix this error code later