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Versions ======== * Platform: linux; (Linux-6.11.0-1018-azure-x86_64-with-glibc2.39) * Python version: 3.13.11 (CPython) * Sphinx version: 9.0.4 * Docutils version: 0.22.3 * Jinja2 version: 3.1.6 * Pygments version: 2.19.2 Last Messages ============= Writing evaluated template result to /home/runner/work/traits/traits/docs/build/_static/enthought.css Writing evaluated template result to /home/runner/work/traits/traits/docs/build/_static/copybutton.js copying static files: done copying extra files... copying extra files: done copying assets: done writing output... [ 2%] changelog Loaded Extensions ================= * sphinx.ext.mathjax (9.0.4) * alabaster (1.0.0) * sphinxcontrib.applehelp (2.0.0) * sphinxcontrib.devhelp (2.0.0) * sphinxcontrib.htmlhelp (2.1.0) * sphinxcontrib.serializinghtml (2.0.0) * sphinxcontrib.qthelp (2.0.0) * sphinx.ext.autodoc (9.0.4) * sphinx.ext.autosummary (9.0.4) * sphinx.ext.coverage (9.0.4) * sphinx.ext.githubpages (9.0.4) * sphinx.ext.intersphinx (9.0.4) * sphinx.ext.napoleon (9.0.4) * sphinx.ext.viewcode (9.0.4) * sphinx_copybutton (0.5.2) * traits.util.trait_documenter (unknown version) Traceback ========= File "/opt/hostedtoolcache/Python/3.13.11/x64/lib/python3.13/site-packages/sphinx/builders/html/__init__.py", line 1229, in handle_page raise ThemeError(msg) from exc sphinx.errors.ThemeError: An error happened in rendering the page changelog. Reason: TypeError("argument of type '_CascadingStyleSheet' is not iterable") The full traceback has been saved in: /tmp/sphinx-err-5b2s48rk.log To report this error to the developers, please open an issue at <https://github.com/sphinx-doc/sphinx/issues/>. Thanks! Please also report this if it was a user error, so that a better error message can be provided next time. writing output... [ 2%] changelog Error: Process completed with exit code 2.