kocolosk commented on issue #279: Expand docs on builtin reducers, add _approx_count_distinct URL: https://github.com/apache/couchdb-documentation/pull/279#issuecomment-392590258 I don't understand why Travis failed on 4 of the 6 build jobs. I tried the `check`, `man` and `html` targets locally and all worked fine. The relevant bit of the error message is ``` reading sources... [100%] whatsnew/index looking for now-outdated files... Exception occurred: File "/home/travis/virtualenv/python2.7.14/lib/python2.7/site-packages/sphinx/environment/collectors/toctree.py", line 172, in _walk_toc subnode[0]['secnumber'] = list(number) TypeError: 'NoneType' object is not iterable The full traceback has been saved in /tmp/sphinx-err-SNcFvK.log, if you want to report the issue to the developers. Please also report this if it was a user error, so that a better error message can be provided next time. A bug report can be filed in the tracker at <https://github.com/sphinx-doc/sphinx/issues>. Thanks! make: *** [html] Error 2```
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