Error: The xxx module cannot be found

Error: The xxx module cannot be found

我正在尝试构建这个 doc (conf.py in doc/source/conf.py) on readthedocs.org. Build fail (full trace here):

html
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Error: The 'pytz.lazy' module cannot be found. Did you install Sphinx and its dependencies correctly?

我尝试 WIPE the build environnement 但没有成功。有什么想法吗?

确保您选中高级设置中的 "system package usage" 选项。