可以了，执行 git submodule update --init --recursive以后，就可以正常build了。

重新到https://github.com/espressif/esp-rainmaker.git下载了相关的代码，现在没有那个错误了，但出现了新的erros如下所示： /esp-rainmaker/examples/common/app_insights/app_insights.c: In function 'app_insights_enable': /esp-rainmaker/examples/common/app_insights/app_insights.c:52:5 : error: implicit declaration of function 'esp_insights_...

idf版本是：ESP-IDF v4.4.3-dirty

/device_firmware/7_insights/main/app_main.c:36:10: fatal error: app_
insights.h: No such file or directory
#include "app_insights.h"
^~~~~~~~~~~~~~~~
compilation terminated.

代码从https://github.com/espressif/book-esp32c3-iot-projects/tree/main/device_firmware/7_insights下载

C:/rainmaker/device_firmware/components/light_driver/iot_led.c:66:46: error: 'ti mg_txconfig_reg_t' {aka 'volatile union <anonymous>'} has no member named 'enabl e' TG[group_num]->hw_timer[timer_num].config.enable = 0; ^ C:/rainmaker/device_firmware/components/light_driver/iot_led.c: In function '_i...