`ERROR: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.
Exception in Tkinter callback
Traceback (most recent call last):
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2075, in post_process
    files_to_delete, info = pp.run(info)
  File "D:\Python\lib\site-packages\youtube_dl\postprocessor\ffmpeg.py", line 272, in run
    filecodec = self.get_audio_codec(path)
  File "D:\Python\lib\site-packages\youtube_dl\postprocessor\ffmpeg.py", line 166, in get_audio_codec
    raise PostProcessingError('ffprobe/avprobe and ffmpeg/avconv not found. Please install one.')
youtube_dl.utils.PostProcessingError: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:/Python_code/graphic_interface/AudioYouTube.py", line 24, in downloader
    ydl.download([res])
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2028, in download
    res = self.extract_info(
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 796, in extract_info
    return self.__extract_info(url, ie, download, extra_info, process)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 803, in wrapper
    return func(self, *args, **kwargs)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 835, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 873, in process_ie_result
    return self.extract_info(ie_result['url'],
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 796, in extract_info
    return self.__extract_info(url, ie, download, extra_info, process)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 803, in wrapper
    return func(self, *args, **kwargs)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 835, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 1012, in process_ie_result
    entry_result = self.__process_iterable_entry(entry, download, extra)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 803, in wrapper
    return func(self, *args, **kwargs)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 1044, in __process_iterable_entry
    return self.process_ie_result(
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 906, in process_ie_result
    return self.process_ie_result(
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 869, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 1654, in process_video_result
    self.process_info(new_info)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2010, in process_info
    self.post_process(filename, info_dict)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2077, in post_process
    self.report_error(e.msg)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 625, in report_error
    self.trouble(error_message, tb)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 595, in trouble
    raise DownloadError(message, exc_info)
youtube_dl.utils.DownloadError: ERROR: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2075, in post_process
    files_to_delete, info = pp.run(info)
  File "D:\Python\lib\site-packages\youtube_dl\postprocessor\ffmpeg.py", line 272, in run
    filecodec = self.get_audio_codec(path)
  File "D:\Python\lib\site-packages\youtube_dl\postprocessor\ffmpeg.py", line 166, in get_audio_codec
    raise PostProcessingError('ffprobe/avprobe and ffmpeg/avconv not found. Please install one.')
youtube_dl.utils.PostProcessingError: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\Python\lib\tkinter\__init__.py", line 1883, in __call__
    return self.func(*args)
  File "D:/Python_code/graphic_interface/AudioYouTube.py", line 40, in downloader
    ydl.download([res])
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2028, in download
    res = self.extract_info(
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 796, in extract_info
    return self.__extract_info(url, ie, download, extra_info, process)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 803, in wrapper
    return func(self, *args, **kwargs)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 835, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 873, in process_ie_result
    return self.extract_info(ie_result['url'],
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 796, in extract_info
    return self.__extract_info(url, ie, download, extra_info, process)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 803, in wrapper
    return func(self, *args, **kwargs)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 835, in __extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 1012, in process_ie_result
    entry_result = self.__process_iterable_entry(entry, download, extra)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 803, in wrapper
    return func(self, *args, **kwargs)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 1044, in __process_iterable_entry
    return self.process_ie_result(
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 906, in process_ie_result
    return self.process_ie_result(
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 869, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 1654, in process_video_result
    self.process_info(new_info)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2010, in process_info
    self.post_process(filename, info_dict)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 2077, in post_process
    self.report_error(e.msg)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 625, in report_error
    self.trouble(error_message, tb)
  File "D:\Python\lib\site-packages\youtube_dl\YoutubeDL.py", line 595, in trouble
    raise DownloadError(message, exc_info)
youtube_dl.utils.DownloadError: ERROR: ffprobe/avprobe and ffmpeg/avconv not found. Please install one.`