问题原因：

路径中不能包括中文。

问题情况：

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Traceback (most recent call last):
File "C:/Users/***/esp/v4.4.7/esp-idf/tools/kconfig_new/prepare_kconfig_files.py", line 94, in <module>
    env.update(json.load(args.env_file))
File "json\__init__.py", line 293, in load
UnicodeDecodeError: 'gbk' codec can't decode byte 0xad in position 5872: illegal multibyte sequence
Traceback (most recent call last):
File "C:/Users/***/esp/v4.4.7/esp-idf/tools/kconfig_new/confgen.py", line 644, in <module>
    main()
File "C:/Users/***/esp/v4.4.7/esp-idf/tools/kconfig_new/confgen.py", line 261, in main
    env = json.load(args.env_file)
File "json\__init__.py", line 293, in load
UnicodeDecodeError: 'gbk' codec can't decode byte 0xad in position 5872: illegal multibyte sequence
CMake Error at C:/Users/***/esp/v4.4.7/esp-idf/tools/cmake/kconfig.cmake:266 (message):
Failed to run confgen.py
(C:/Users/***/.espressif/python_env/idf4.4_py3.8_env/Scripts/python.exe;C:/Users/***/esp/v4.4.7/esp-idf/tools/kconfig_new/confgen.py;--kconfig;C:/Users/***/esp/v4.4.7/esp-idf/Kconfig;--sdkconfig-rename;C:/Users/***/esp/v4.4.7/esp-idf/sdkconfig.rename;--config;R:/大学生活和学习/工作区/超声眼动/VE-KWS/firmware/sdkconfig;--env-file;R:/大学生活和学习/工作区/超声眼动/VE-KWS/firmware/build/config.env).
Error 1
Call Stack (most recent call first):
C:/Users/***/esp/v4.4.7/esp-idf/tools/cmake/build.cmake:534 (__kconfig_generate_config)
C:/Users/***/esp/v4.4.7/esp-idf/tools/cmake/project.cmake:476 (idf_build_process)
CMakeLists.txt:6 (project)

记：

之前也曾遇到过这个问题，没想到还会再次被这个问题耽误这么长时间。特此记录，以免再次遇到这个问题时，浪费时间。