[tex4ht] Can’t find/open file ‘xxx.dvi’ or ‘xxx.lg’

[Michal Hoftich]

I've originally sent my reply only to OP, so here it is again. Sorry
for the noise.

Hi,

I get the same error as you with this TeX file, so the issue is not
caused by a wrong installation of teX4ebook or make4ht. I've found
that the fatal error is caused by this line at the beginning of the TeX
file:

\pdfoutput=1

As TeX4ht works in the DVI mode, this causes everything to fail. I don't
think that it has any meaning, so I would remove it. If it has some use,
you can disable it just for TeX4ht, using:

\ifdefined\HCode\else
\pdfoutput=1
\fi

With this change, I can compile the file. There are still problems
though. One seems to be caused by a wrong configuration for eqnarray,
the other is caused by \maketitle redefinition in the custom package.

Here is the mycfg.cfg file, it should fix these issues:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\Preamble{xhtml}
\ConfigureEnv{eqnarray}
     {\ifvmode\IgnorePar\fi\EndP\HCode{<div class="eqnarray">}}
     {\ifvmode\IgnorePar\fi\EndP\HCode{</div>}\par}{}{}

% fix clash with \maketitle
\Configure{maketitle}{\ifvmode\IgnorePar\fi\EndP\HCode{<div
class="maketitle">}}{}{}{}{}{}{}{}
% close <div> before \tableofcontents
\renewcommand\beforetochook{\ifvmode\IgnorePar\fi\EndP\HCode{</div>}}
% put \title in <h1> element
\renewcommand\afterProceedingsSpace{\ShowPar\par\HCode{<h1>}}%
\renewcommand\afterTitleSpace{\HCode{</h1>}}
% disable \hrule
\special{t4ht at _}
\begin{document}
\EndPreamble
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Compile the document using:

tex4ebook -c mycfg.cfg -f epub3+dvisvgm_hashes draft

I've used the `dvisvgm_hashes` extension. It requires the SVG output for
math and included PDF images. It is also faster, as it converts several
images at once.

Best regards,
Michal

On Sun, Apr 11, 2021 at 4:03 AM 世纪初的魔术 <1019191262 at qq.com> wrote:
>
> I used the source attached to the annex, or you can download it from https://arxiv.org/format/2104.03341.
> the command I use is "./tex4ebook -f epub3 draft.tex". since i never used lua before, I don't know how to configure the location of tex4ebook(I tried adding package.path='/usr/local/lib/lua/5.2/?.lua;/home/amo/epub/tex4ebook/?.lua;' to tex4ebook, which didn't work), make4ht, and luaxml. So I just copy the source code of make4ht and luaxml to tex4ebook, and untar the arxiv source in tex4ebook. This is not elegant, but it's what I could finish for now. For texlive, mk4ht, htlatex I installed them by sudo apt-get.
>
>