Hi digsub,

Thanks for reporting, it will be appreciated if you could write to sales@espressif.com. Thanks.

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hi xiagbsj,
感谢反馈。您方便试下 `idf.py fullclean` 么? 我们不需要 CMakeOutput.log，而需要 console 的全部 logging output 来进行 debug，即在运行 `idf.py clean` 后 `idf.py build` 打印的 log。谢谢。

另外，能帮确认下工具链已成功安装么？IDF 中下载安装工具链的脚本。谢谢。

Alvin

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ESP-IDF v4.0.2 的相关文档已发布至 https://docs.espressif.com/projects/esp-idf/zh_CN/v4.0.2/index.html ESP-IDF v4.0.2 是基于 ESP-IDF V4.0 的 Bug 修复版本，截止发稿时， ESP-IDF v4.1 是最新稳定版本。 根据 ESP-IDF 支持期限政策 ，ESP-IDF v4.0.x 将支持至 2021 年 10 月。自 ESP-IDF v4.1 开始，ESP-IDF 的每个主要版本和次要版本（如 V4.1、V4.2 等）自其首次稳定版本发布之日起将支持 30 个月。 如您想获取发布...

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hi lh18753385,

ESP-IDF v4.2 支持 ESP32-S2，烦请使用 ESP-IDF v4.2 版本。谢谢。