以下のようなエラーがSphinx + Breatheで出る。 # Sphinx version: 1.6.3 # Python version: 3.6.2rc1 (CPython) # Docutils version: 0.13.1 release # Jinja2 version: 2.9.6 # Last messages: # building [mo]: targets for 0 po files that are out of d…