It seems like a wrong make4ht installation. It cannot load any
extensions. You may try instead this:
tex4ebook -c mycfg.cfg draft "svg"
It should still produce SVG images for PDF files, but the compilation
will be slower.
The generated Epub file is quite large, here is a link:
https://www.transfernow.net/dl/20210411NhZs7evV
Best regards,
Michal
it worked,but i got this warnning, and the pdf are not appeared as pictures but
white space. any idea i can fix this? I might not have much time spenting on
this idea, anyway thank you for your helpful reply.
