YouTube-dl cannot download Udemy course videos failing with, ERROR: unable to download video data: HTTP Error 403: Forbidden

[drax07]

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is

YouTube-dl Version:
2018.05.01
on Windows 10 64-bit

Before submitting an issue make sure you have:

• [X ] At least skimmed through the README, most notably the FAQ and BUGS sections
• [ X] Searched the bugtracker for similar issues including closed ones
• [X ] Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• [X ] Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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Trying to Download a Udemy course for offline viewing and I keep getting a 403 error.
I downloaded the course site's cookies using cookies.txt for Google Chrome.
[X] yes I have access to the course in my account
[X] yes i have verified that my account credentials are correct
*note that USER is replacing the username of the account, so that shouldn't be an error

attempted to run
>youtube-dl.exe --verbose --cookies C:\Users\USER\Desktop\cookies.txt -u email@email.com -p mypassword https://www.udemy.com/learn-web-development-complete-step-by-step-guide-to-success/learn/v4/content
MY LOG

ERROR: unable to download video data: HTTP Error 403: Forbidden
Traceback (most recent call last):
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 1900, in process_info
    success = dl(filename, info_dict)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 1839, in dl
    return fd.download(name, info)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\common.py", line 365, in download
    return self.real_download(filename, info_dict)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\http.py", line 340, in real_download
    establish_connection()
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\http.py", line 109, in establish_connection
    ctx.data = self.ydl.urlopen(request)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 2203, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 532, in open
    response = meth(req, response)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 570, in error
    return self._call_chain(*args)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden

I attempted other flags as per suggestions that I found online, these include...
youtube-dl.exe --verbose --no-cache-dir --cookies C:\Users\USER\Desktop\cookies.txt -u email@email.com -p mypassword https://www.udemy.com/learn-web-development-complete-step-by-step-guide-to-success/learn/v4/content

Resulting in:

ERROR: unable to download video data: HTTP Error 403: Forbidden
Traceback (most recent call last):
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 1900, in process_info
    success = dl(filename, info_dict)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 1839, in dl
    return fd.download(name, info)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\common.py", line 365, in download
    return self.real_download(filename, info_dict)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\http.py", line 340, in real_download
    establish_connection()
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\http.py", line 109, in establish_connection
    ctx.data = self.ydl.urlopen(request)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 2203, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 532, in open
    response = meth(req, response)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 570, in error
    return self._call_chain(*args)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden

and also,
youtube-dl.exe --verbose --sleep-interval 15 --max-sleep-interval 60 -u email@email.com -p mypassword https://www.udemy.com/learn-web-development-complete-step-by-step-guide-to-success/learn/v4/content
reuslting in,

[download] Sleeping 59.62 seconds...
ERROR: unable to download video data: HTTP Error 403: Forbidden
Traceback (most recent call last):
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 1900, in process_info
    success = dl(filename, info_dict)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 1839, in dl
    return fd.download(name, info)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\common.py", line 365, in download
    return self.real_download(filename, info_dict)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\http.py", line 340, in real_download
    establish_connection()
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\downloader\http.py", line 109, in establish_connection
    ctx.data = self.ydl.urlopen(request)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\site-packages\youtube_dl\YoutubeDL.py", line 2203, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 532, in open
    response = meth(req, response)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 570, in error
    return self._call_chain(*args)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "c:\users\USER\appdata\local\programs\python\python36\lib\urllib\request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden

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