SPHINXBUILD environment PATH

[Andreas Kühne]

Hello, I explore the project Blender Manual Translate. At this point I have a small problem.

https://docs.blender.org/manual/de/dev/contribute/build.html

After typing "make" the terminal says:

Set the SPHINXBUILD environment variable to point to the full path of the 'sphinx-build' executable. Alternatively you can add the directory with the executable to your PATH.

Is this actually the problem?  
If so, what characters do I have to enter where?

Thanks for answers

Andreas

[Andreas Kühne]

The OS is macOS 12.6.6