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[Solved] raise ExtractorError(‘Could not find JS function %r’ % funcname) youtube_dl.utils.ExtractorError: Could not find JS function ‘na’

Hello Guys, How are you all? Hope You all Are Fine. Today I am not able to download youtube video with youtube_dl python package And I am facing following error raise ExtractorError(‘Could not find JS function %r’ % funcname) youtube_dl.utils.ExtractorError: Could not find JS function ‘na’ in Python. So Here I am Explain to you all the possible solutions here.

Without wasting your time, Let’s start This Article to Solve This Error.

How This Error Occurs ?

I am not able to download youtube video with youtube_dl python package And I am facing following error.

raise ExtractorError(‘Could not find JS function %r’ % funcname)
youtube_dl.utils.ExtractorError: Could not find JS function ‘na’;

please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the –verbose flag and include its complete output.

(caused by ExtractorError(“Could not find JS function ‘na’; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the –verbose flag and include its complete output.”));

please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the –verbose flag and include its complete output.

How To Solve raise ExtractorError(‘Could not find JS function %r’ % funcname) youtube_dl.utils.ExtractorError: Could not find JS function ‘na’ Error ?

  1. How To Solve raise ExtractorError('Could not find JS function %r' % funcname) youtube_dl.utils.ExtractorError: Could not find JS function 'na' Error ?

    To Solve raise ExtractorError('Could not find JS function %r' % funcname) youtube_dl.utils.ExtractorError: Could not find JS function 'na' Error Try to upate youtube-dl to the latest version. Latest Version is 2021.12.17 ( Dec 17, 2021 ) Just run this command: pip install –upgrade youtube-dl Or Install Specific Latest version: pip install youtube_dl==2021.12.17 Now, your error must be solved.

  2. raise ExtractorError('Could not find JS function %r' % funcname) youtube_dl.utils.ExtractorError: Could not find JS function 'na'

    To Solve raise ExtractorError('Could not find JS function %r' % funcname) youtube_dl.utils.ExtractorError: Could not find JS function 'na' Error One of alternative is pytube. Just install it with this command: pip install pytube Now, your error must be solved.

Solution 1: use alternative

One of alternative is pytube. Just install it with this command.

pip install pytube

Now, your error must be solved.

Solution 2: execute this command

Just execute this command with providing branch. Here is command.

git clone --depth 1 --branch fix-function-sig-parser https://github.com/lanegramling/youtube-dl.git

cd youtube-dl

python3 -m pip install -e . --user

Now, Your error should be solved.

Solution 3: upgrade youtube-dl

Try to upate youtube-dl to the latest version. Latest Version is 2021.12.17 ( Dec 17, 2021 ) Just run this command.

pip install --upgrade youtube-dl

Or Install Specific Latest version.

pip install youtube_dl==2021.12.17

Now, your error must be solved.

Solution 4: Use yt-dlp instead of youtube_dl

Just try to use yt-dlp instead of youtube_dl Here is command.

from youtube_dl import YoutubeDL, utils # DO NOT USE THIS

Use This Instaed of above line

from yt_dlp import YoutubeDL, utils # USE THIS

Now, Your error should be solved.

Summary

It’s all About this issue. Hope all solution helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you?

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