adam@Adams-MacBook-Pro ~/D/example> rm -rf build; uv run --with="sphinx" --with="sphinxnotes-strike==1.4" sphinx-build -W -b linkcheck . build/
Running Sphinx v8.2.3
loading translations [en]... done
making output directory... done
building [mo]: targets for 0 po files that are out of date
writing output...
building [linkcheck]: targets for 1 source files that are out of date
updating environment: [new config] 1 added, 0 changed, 0 removed
reading sources... [100%] index
Versions
========
* Platform: darwin; (macOS-26.1-arm64-arm-64bit-Mach-O)
* Python version: 3.13.9 (CPython)
* Sphinx version: 8.2.3
* Docutils version: 0.21.2
* Jinja2 version: 3.1.6
* Pygments version: 2.19.2
Last Messages
=============
writing output...
building [linkcheck]: targets for 1 source files that are out of date
updating environment:
[new config]
1 added, 0 changed, 0 removed
reading sources... [100%]
index
Loaded Extensions
=================
* sphinx.ext.mathjax (8.2.3)
* 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)
* sphinxnotes.strike (1.4)
Traceback
=========
File "/Users/adam/.cache/uv/archive-v0/bBM-SrsSmyWF_uCcEJOVg/lib/python3.13/site-packages/sphinxnotes/strike/__init__.py", line 92, in _is_supported_builder
handlers = builder.app.registry.translation_handlers[builder.name]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
KeyError: 'linkcheck'
The full traceback has been saved in:
/var/folders/7m/7dw9_61n2mdddks3_ywc29qr0000gn/T/sphinx-err-h28hnm0i.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.
