0.38.6: sphinx warnings reference target not found

[kloczek]

On building my packages I'm using sphinx-build command with -n switch which shows warmings about missing references. These are not critical issues.
Here is the output with warnings:

+ /usr/bin/sphinx-build -n -T -b man docs build/sphinx/man
Running Sphinx v4.5.0
making output directory... done
WARNING: html_static_path entry '_static' does not exist
loading intersphinx inventory from http://docs.python.org/objects.inv...
intersphinx inventory has moved: http://docs.python.org/objects.inv -> https://docs.python.org/3/objects.inv
building [mo]: targets for 0 po files that are out of date
building [man]: all manpages
updating environment: [new config] 2 added, 0 changed, 0 removed
reading sources... [100%] index
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
writing... python-zeroconf.3 { api } /home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_updates.py:docstring of zeroconf.RecordUpdate.new:: WARNING: py:class reference target not found: zeroconf._dns.DNSRecord
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_updates.py:docstring of zeroconf.RecordUpdate.old:: WARNING: py:class reference target not found: zeroconf._dns.DNSRecord
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_updates.py:docstring of zeroconf._updates.RecordUpdateListener.update_record:: WARNING: py:class reference target not found: zeroconf._dns.DNSRecord
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/browser.py:docstring of zeroconf._services.browser.ServiceBrowser:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/browser.py:docstring of zeroconf._services.browser.ServiceBrowser:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/browser.py:docstring of zeroconf._services.browser.ServiceBrowser:1: WARNING: py:class reference target not found: zeroconf._services.browser._ServiceBrowserBase
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/info.py:docstring of zeroconf._services.info.ServiceInfo.dns_addresses:: WARNING: py:class reference target not found: zeroconf._dns.DNSAddress
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/info.py:docstring of zeroconf._services.info.ServiceInfo.dns_pointer:: WARNING: py:class reference target not found: zeroconf._dns.DNSPointer
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/info.py:docstring of zeroconf._services.info.ServiceInfo.dns_service:: WARNING: py:class reference target not found: zeroconf._dns.DNSService
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/info.py:docstring of zeroconf._services.info.ServiceInfo.dns_text:: WARNING: py:class reference target not found: zeroconf._dns.DNSText
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/info.py:docstring of zeroconf._services.info.ServiceInfo.generate_request_query:: WARNING: py:class reference target not found: zeroconf._protocol.outgoing.DNSOutgoing
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/info.py:docstring of zeroconf._services.info.ServiceInfo.update_record:: WARNING: py:class reference target not found: zeroconf._dns.DNSRecord
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf:1: WARNING: py:class reference target not found: zeroconf._logger.QuietLogger
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.add_listener:: WARNING: py:class reference target not found: zeroconf._dns.DNSQuestion
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.add_listener:: WARNING: py:class reference target not found: zeroconf._dns.DNSQuestion
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.add_service_listener:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.async_add_listener:: WARNING: py:class reference target not found: zeroconf._dns.DNSQuestion
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.async_add_listener:: WARNING: py:class reference target not found: zeroconf._dns.DNSQuestion
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.async_send:: WARNING: py:class reference target not found: zeroconf._protocol.outgoing.DNSOutgoing
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.async_send:: WARNING: py:class reference target not found: asyncio.transports.DatagramTransport
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.generate_service_broadcast:: WARNING: py:class reference target not found: zeroconf._protocol.outgoing.DNSOutgoing
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.generate_service_query:: WARNING: py:class reference target not found: zeroconf._protocol.outgoing.DNSOutgoing
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.generate_unregister_all_services:: WARNING: py:class reference target not found: zeroconf._protocol.outgoing.DNSOutgoing
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.handle_assembled_query:: WARNING: py:class reference target not found: zeroconf._protocol.incoming.DNSIncoming
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.handle_assembled_query:: WARNING: py:class reference target not found: asyncio.transports.DatagramTransport
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.handle_response:: WARNING: py:class reference target not found: zeroconf._protocol.incoming.DNSIncoming
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.remove_service_listener:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.send:: WARNING: py:class reference target not found: zeroconf._protocol.outgoing.DNSOutgoing
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_core.py:docstring of zeroconf._core.Zeroconf.send:: WARNING: py:class reference target not found: asyncio.transports.DatagramTransport
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/_services/types.py:docstring of zeroconf._services.types.ZeroconfServiceTypes:1: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/asyncio.py:docstring of zeroconf.asyncio.AsyncServiceBrowser:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/asyncio.py:docstring of zeroconf.asyncio.AsyncServiceBrowser:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/asyncio.py:docstring of zeroconf.asyncio.AsyncServiceBrowser:1: WARNING: py:class reference target not found: zeroconf._services.browser._ServiceBrowserBase
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/asyncio.py:docstring of zeroconf.asyncio.AsyncZeroconf.async_add_service_listener:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
/home/tkloczko/rpmbuild/BUILD/python-zeroconf-0.38.6/zeroconf/asyncio.py:docstring of zeroconf.asyncio.AsyncZeroconf.async_remove_service_listener:: WARNING: py:class reference target not found: zeroconf._services.ServiceListener
done
build succeeded, 36 warnings.

[kloczek]

You can peak on fixes that kind of issues in other projects
latchset/jwcrypto#289
click-contrib/sphinx-click@abc31069
latchset/jwcrypto#289
RDFLib/rdflib-sqlalchemy#95
sissaschool/elementpath@bf869d9e
jaraco/cssutils#21