auto-editor first error

C:\python\GitHub\auto-editor-master>python.exe auto-editor.py destiny.MP4
Running from fastVideo.py
Traceback (most recent call last):
  File "auto-editor.py", line 172, in <module>
    FRAME_SPREADAGE, SAMPLE_RATE)
  File "C:\python\GitHub\auto-editor-master\scripts\fastVideo.py", line 74, in fastVideo
    timeTaken = getVideoLength(videoFile) / 5
  File "C:\python\GitHub\auto-editor-master\scripts\fastVideo.py", line 66, in getVideoLength
    stderr=subprocess.STDOUT)
  File "C:\Python\python37 64bit\lib\subprocess.py", line 488, in run
    with Popen(*popenargs, **kwargs) as process:
  File "C:\Python\python37 64bit\lib\subprocess.py", line 800, in __init__
    restore_signals, start_new_session)
  File "C:\Python\python37 64bit\lib\subprocess.py", line 1207, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified