Lecturio.com bug

[cr7mmsa]

Please follow the guide below

• 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 2018.12.09. 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 Issues with outdated version will be rejected.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 2018.12.09

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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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 ```):

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '--cookies', 'cookies.txt', 'https://app.lecturio.com/medical-courses/sensing-the-environment.course#tab/videos']
[debug] Encodings: locale cp1252, fs mbcs, out cp437, pref cp1252
[debug] youtube-dl version 2018.12.09
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.17763
[debug] exe versions: none
[debug] Proxy map: {}
[LecturioCourse] sensing-the-environment: Downloading webpage
[download] Downloading playlist: Sensing the Environment
[LecturioCourse] playlist Sensing the Environment: Collected 18 video ids (downloading 18 of them)
[download] Downloading video 1 of 18
[Lecturio] thresholds: Downloading webpage
[Lecturio] thresholds: Downloading JSON metadata
Traceback (most recent call last):
  File "__main__.py", line 19, in <module>
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\__init__.py", line 472, in main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\__init__.py", line 462, in _real_main
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\YoutubeDL.py", line 2002, in download
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\YoutubeDL.py", line 804, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\YoutubeDL.py", line 1003, in process_ie_result
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\YoutubeDL.py", line 865, in process_ie_result
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\YoutubeDL.py", line 793, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\extractor\common.py", line 508, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpg8efod20\build\youtube_dl\extractor\lecturio.py", line 141, in _real_extract
IndexError: list index out of range

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If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• Single video: https://www.youtube.com/watch?v=BaW_jenozKc
• Single video: https://youtu.be/BaW_jenozKc
• Playlist: https://www.youtube.com/playlist?list=PL4lCao7KL_QFVb7Iudeipvc2BCavECqzc

Note that youtube-dl does not support sites dedicated to copyright infringement. In order for site support request to be accepted all provided example URLs should not violate any copyrights.

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Description of your issue, suggested solution and other information

Explanation of your issue in arbitrary form goes here. Please make sure the description is worded well enough to be understood. Provide as much context and examples as possible.
If work on your issue requires account credentials please provide them or explain how one can obtain them.

[cr7mmsa]

some videos download normally the others not

[cr7mmsa]

for example this course doesn't download : https://app.lecturio.com/medical-courses/sensing-the-environment.course#tab/videos

and this course downloads normally : https://app.lecturio.com/medical-courses/biochemistry-basics.course#tab/videos