No supported JavaScript runtime could be found

[danielmking92]

Checklist

• I'm reporting a bug unrelated to a specific site.
• I've verified that I'm running the latest version of yt-dlp.
• I've verified that I'm running the latest stable version of Seal or any later preview versions.
• I've read the Contributing guidelines and Code Of Conduct.
• I've checked that the site i'm trying to download from is in the Supported Sites list from yt-dlp
• I understand that the issue will be (ignored/closed) if I intentionally remove or skip any mandatory field.

Describe the bug

WARNING: [youtube] No supported JavaScript runtime could be found. Only deno is enabled by default; to use another runtime add --js-runtimes RUNTIME[:PATH] to your command/config. YouTube extraction without a JS runtime has been deprecated, and some formats may be missing. See https://github.com/yt-dlp/yt-dlp/wiki/EJS for details on installing one
ERROR: Preprocessing: Conversion failed!
ERROR: Preprocessing: Conversion failed!

To Reproduce

No response

Error reports

WARNING: [youtube] No supported JavaScript runtime could be found. Only deno is enabled by default; to use another runtime add --js-runtimes RUNTIME[:PATH] to your command/config. YouTube extraction without a JS runtime has been deprecated, and some formats may be missing. See https://github.com/yt-dlp/yt-dlp/wiki/EJS for details on installing one
ERROR: Preprocessing: Conversion failed!
ERROR: Preprocessing: Conversion failed!

Screenshots & Screen Records

No response

Additional context

No response

[DanielGG5]

I was getting the exact same error (403 Forbidden) and the warning about the missing JavaScript runtime on Android 14.
I managed to fix it by manually updating the yt-dlp binary within the app settings.

[elreymon]

yt-dlp updated (with nightlies)
Still getting the error with https://youtu.be/EnSV7h6Lx4g

[CodeB90]

same problem here