我在快速入門-ESP-IDF編程指南的第四步失敗了，錯誤訊息如下：
# python -m pip install --user -r $IDF_PATH/requirements.txt
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
ERROR: Could not open requirements file: [Errno 22] invalid mode ('rb') or filename: '\xa1\xa8D:/esp/msys32/home/Leo_Yang/esp/esp-idf\xa1\xa8/requirements.txt'
請問該如何解決此問題？