Moviepy的解析器解析问题

在使用Moviepy时,进行mp4视频文件提取mp3音频文件时编码解析器无法解析
raise ValueError("MoviePy couldn't find the codec associated "
ValueError: MoviePy couldn't find the codec associated with the filename. Provide the 'codec' parameter in write_audiofile.

然而取消遍历则成功