[Udemy] ERROR: No video formats found

[mark-ops]

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• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.04.25. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• [x ] I've verified and I assure that I'm running youtube-dl 2018.04.25

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)
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• Question
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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

$ youtube-dl -v -r 1M -u XXXXXXX -p XXXXXXXX -o '~/MyVideos/%(playlist)s/%(chapter_number)s - %(chapter)s/%(title)s.%(ext)s' https://www.udemy.com/elasticsearch-6-and-elastic-stack-in-depth-and-hands-on/
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '-r', '1M', '-u', 'PRIVATE', '-p', 'PRIVATE', '-o', '~/MyVideos/%(playlist)s/%(chapter_number)s - %(chapter)s/%(title)s.%(ext)s', 'https://www.udemy.com/elasticsearch-6-and-elastic-stack-in-depth-and-hands-on/']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.04.25
[debug] Python version 3.6.4 (CPython) - CYGWIN_NT-6.1-2.10.0-0.325-5-3-x86_64-64bit-WindowsPE
[debug] exe versions: none
[debug] Proxy map: {}
[udemy:course] Downloading login popup
[udemy:course] Logging in
[udemy:course] elasticsearch-6-and-elastic-stack-in-depth-and-hands-on: Downloading webpage
[udemy:course] 1478894: Downloading course curriculum
[download] Downloading playlist: Elasticsearch 6 and Elastic Stack - In Depth and Hands On!
[udemy:course] playlist Elasticsearch 6 and Elastic Stack - In Depth and Hands On!: Collected 62 video ids (downloading 62 of them)
[download] Downloading video 1 of 62
[udemy] Downloading login popup
[udemy] 8878834: Downloading webpage
[udemy] 8878834: Downloading lecture JSON
ERROR: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/youtube_dl/YoutubeDL.py", line 789, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 440, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/udemy.py", line 360, in _real_extract
    self._sort_formats(formats, field_preference=('height', 'width', 'tbr', 'format_id'))
  File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 1083, in _sort_formats
    raise ExtractorError('No video formats found')
youtube_dl.utils.ExtractorError: No video formats found; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output....

Description of your issue, suggested solution and other information

I was able to successfully download from the above URL yesterday. However I did get disconnected (presumably due to rate limiting) initially. I tried again today and the above error was generated. Nothing else has changed on my system.

[dstftw]

For any work on the issue you must provide account credentials.

[Joeeeyy]

I'm facing the same problem. I have specified account details like: youtube-dl -u user_email -p password -o 'E:/Udemy Ds/React and Redux/%( playlist)s/%(chapter_name)s - %(chapter)s/%(playlist_index)s - %(title)s.%(ext)s' https://www.udemy.com/learn-and-understand-react-and-redux-i/learn/v4/t/lecture/6873336?start=0