> Eventually I decided to remove the package, as no package depended
> on it.
>
> Then I got the same error on other fonts: NotoSansMonoCJKjp-Regular
> and maybe another one.
>
> So, to summarize, I removed these packages:
>
> google-noto-serif-cjk-vf-fonts
> google-noto-sans-cjk-vf-fonts
> google-noto-sans-mono-cjk-vf-fonts
>
> Doc built, I can now work on the doc patch.
Actually, for running `make doc` this problem of yours shouldn't
happen at all – if you install the necessary fonts for building the
documentation, these fall-back fonts should never be accessed.
Have you seen chapter 4.2.3, 'Requirements for building
documentation', in the CG? It lists the following necessary fonts:
URW++ and TeX Gyre
Bitstream Vera Sans
Bitstream Charter
DejaVu Sans
DejaVu Serif
DejaVu Sans Mono
Linux Libertine O
Have you installed these fonts?
Werner
