Error when building user guide: UndefinedError("'logo' is undefined")

[andygrove]

Describe the bug

$ ./build.sh 
Running Sphinx v6.1.3
making output directory... done
[autosummary] generating autosummary for: contributor-guide/communication.md, contributor-guide/index.md, contributor-guide/quarterly_roadmap.md, contributor-guide/roadmap.md, contributor-guide/specification/index.rst, contributor-guide/specification/invariants.md, contributor-guide/specification/output-field-name-semantic.md, index.rst, user-guide/cli.md, user-guide/configs.md, ..., user-guide/sql/aggregate_functions.md, user-guide/sql/data_types.md, user-guide/sql/ddl.md, user-guide/sql/explain.md, user-guide/sql/index.rst, user-guide/sql/information_schema.md, user-guide/sql/scalar_functions.md, user-guide/sql/select.md, user-guide/sql/sql_status.md, user-guide/sql/subqueries.md
myst v1.0.0: MdParserConfig(commonmark_only=False, gfm_only=False, enable_extensions={'tasklist'}, disable_syntax=[], all_links_external=False, url_schemes=('http', 'https', 'mailto', 'ftp'), ref_domains=None, fence_as_directive=set(), number_code_blocks=[], title_to_header=False, heading_anchors=3, heading_slug_func=None, html_meta={}, footnote_transition=True, words_per_minute=200, substitutions={}, linkify_fuzzy_links=True, dmath_allow_labels=True, dmath_allow_space=True, dmath_allow_digits=True, dmath_double_inline=False, update_mathjax=True, mathjax_classes='tex2jax_process|mathjax_process|math|output_area', enable_checkboxes=False, suppress_warnings=[], highlight_code_blocks=True)
building [mo]: targets for 0 po files that are out of date
writing output... 
building [html]: targets for 26 source files that are out of date
updating environment: [new config] 26 added, 0 changed, 0 removed
reading sources... [100%] user-guide/sql/subqueries                                                                                                                                       
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
writing output... [  3%] contributor-guide/communication                                                                                                                                  
Theme error:
An error happened in rendering the page contributor-guide/communication.
Reason: UndefinedError("'logo' is undefined")
make: *** [Makefile:38: html] Error 2

To Reproduce

Expected behavior

Additional context

I recently reinstalled my operating system and am now using Ubuntu 22.04. I don't know if that is a factor or not.

[alamb]

I normally run cargo build html and it work swell -- does this still happen to you @andygrove ?

[alamb]

I hvaen't seen this happen recently:

(venv) andrewlamb@Andrews-MacBook-Pro-2:~/Software/datafusion2/docs$ ./build.sh
Running Sphinx v7.2.6
making output directory... done
[autosummary] generating autosummary for: contributor-guide/architecture.md, contributor-guide/communication.md, contributor-guide/getting_started.md, contributor-guide/governance.md, contributor-guide/howtos.md, contributor-guide/index.md, contributor-guide/inviting.md, contributor-guide/quarterly_roadmap.md, contributor-guide/roadmap.md, contributor-guide/specification/index.rst, ..., user-guide/sql/explain.md, user-guide/sql/index.rst, user-guide/sql/information_schema.md, user-guide/sql/operators.md, user-guide/sql/scalar_functions.md, user-guide/sql/select.md, user-guide/sql/sql_status.md, user-guide/sql/subqueries.md, user-guide/sql/window_functions.md, user-guide/sql/write_options.md
myst v2.0.0: MdParserConfig(commonmark_only=False, gfm_only=False, enable_extensions={'deflist', 'tasklist', 'colon_fence'}, disable_syntax=[], all_links_external=False, url_schemes=('http', 'https', 'mailto', 'ftp'), ref_domains=None, fence_as_directive=set(), number_code_blocks=[], title_to_header=False, heading_anchors=3, heading_slug_func=None, html_meta={}, footnote_transition=True, words_per_minute=200, substitutions={}, linkify_fuzzy_links=True, dmath_allow_labels=True, dmath_allow_space=True, dmath_allow_digits=True, dmath_double_inline=False, update_mathjax=True, mathjax_classes='tex2jax_process|mathjax_process|math|output_area', enable_checkboxes=False, suppress_warnings=[], highlight_code_blocks=True)
building [mo]: targets for 0 po files that are out of date
writing output...
building [html]: targets for 50 source files that are out of date
updating environment: [new config] 50 added, 0 changed, 0 removed
reading sources... [100%] user-guide/sql/write_options
/Users/andrewlamb/Software/datafusion2/docs/temp/user-guide/sql/scalar_functions.md:1790: WARNING: Duplicate reference definition: CHRONO FORMAT [myst.duplicate_def]
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
copying downloadable files... [100%] ../../datafusion/core/tests/data/capitalized_example.csv
copying static files... done
copying extra files... done
done
writing output... [100%] user-guide/sql/write_options
generating indices... genindex done
highlighting module code...
writing additional pages... search done
copying images... [100%] _static/images/2x_bgwhite_original.png
dumping search index in English (code: en)... done
dumping object inventory... done
build succeeded, 1 warning.

So closing this one down