Fix this error: [polynomia] updating environment: [new config] 62 added, 0 changed, 0 removed [polynomia] Extension error (sage.docs.conf): [polynomia] Handler for event 'missing-reference' threw an exception (exception: No such config value: intersphinx_disabled_reftypes) diff -up src/sage/docs/conf.py.orig src/sage/docs/conf.py --- src/sage/docs/conf.py.orig 2022-03-04 16:33:15.479009340 -0700 +++ src/sage/docs/conf.py 2022-03-06 18:49:34.742628130 -0700 @@ -910,6 +910,7 @@ def setup(app): if app.srcdir.startswith(SAGE_DOC_SRC): app.add_config_value('intersphinx_mapping', {}, False) app.add_config_value('intersphinx_cache_limit', 5, False) + app.add_config_value('intersphinx_disabled_reftypes', [], False) app.connect('config-inited', set_intersphinx_mappings) app.connect('builder-inited', intersphinx.load_mappings) # We do *not* fully initialize intersphinx since we call it by hand