Build failed - 'generator' object is not reversible

[BennyEronson]

Describe the bug

TypeError: 'generator' object is not reversible.

Even the tech guides at our company could not understand what could cause this.

See the complete error messages in the attached file.

Error log file 20211027.txt

How to Reproduce

Build project Omnia Docs G2.

Expected behavior

A new version (latest) of the documentation should have been built.

Your project

https://readthedocs.org/projects/omnia-docs-g2/builds/

Screenshots

No response

OS

Windows 10 version 20H2

Python version

python 3.7

Sphinx version

1.8.5

Sphinx extensions

No response

Extra tools

No response

Additional context

No response

[astrojuanlu]

Duplicate of #9727 and readthedocs/readthedocs.org#8616.

[BennyEronson]

Hello Juan, Authored what thread? (Sorry I'm just an author). Benny Den ons 27 okt. 2021 kl 17:26 skrev Juan Luis Cano Rodríguez < ***@***.***>:

…

Duplicate of #9727 <#9727> and readthedocs/readthedocs.org#8616 <readthedocs/readthedocs.org#8616>. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#9786 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJA6CW3OTPCY6EBK5326U7LUJAR4BANCNFSM5G2RO2WQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

[Jason2013]

I encountered the same issue:

https://readthedocs.org/projects/getting-started-with-llvm-core-libraries-zh-cn/builds/

[astrojuanlu]

Have a look at #9727 (comment) and readthedocs/readthedocs.org#8616 (comment) to solve the problem.

[BennyEronson]

Thank you for your effort. I will tell our tech guys to give me a hand with this. Benny Den ons 27 okt. 2021 kl 17:44 skrev Juan Luis Cano Rodríguez < ***@***.***>:

…

Have a look at #9727 (comment) <#9727 (comment)> and readthedocs/readthedocs.org#8616 (comment) <readthedocs/readthedocs.org#8616 (comment)> to solve the problem. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#9786 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJA6CW23BA5LDCPBXSZX653UJAT5BANCNFSM5G2RO2WQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.