[FLINK-24662] PyFlink sphinx check failed with "node class 'meta' is already registered, its visitors will be overridden"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.12.0, 1.13.0, 1.14.0, 1.15.0
• Fix Version/s: 1.12.8, 1.13.6, 1.14.3, 1.15.0
• Component/s: API / Python, Tests
• Assignee: Dian Fu
• Reporter: Dian Fu
• Created: 27/Oct/21 03:06
• Updated: 15/Dec/21 01:44
• Resolved: 27/Oct/21 03:23

Description

https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=25481&view=logs&j=9cada3cb-c1d3-5621-16da-0f718fb86602&t=8d78fe4f-d658-5c70-12f8-4921589024c3

==========mypy checks... [SUCCESS]===========
Oct 26 22:08:34 rm -rf _build/*
Oct 26 22:08:34 /__w/1/s/flink-python/dev/.conda/bin/sphinx-build -b html -d _build/doctrees  -a -W . _build/html
Oct 26 22:08:34 Running Sphinx v2.4.4
Oct 26 22:08:34 
Oct 26 22:08:34 Warning, treated as error:
Oct 26 22:08:34 node class 'meta' is already registered, its visitors will be overridden
Oct 26 22:08:34 Makefile:76: recipe for target 'html' failed