Internet of Money git download error I tried to download the pdf from the following repository but i get an error

https://github.com/merklebloom/IoMv1
Ive done the following:
$  git clone https://github.com/merklebloom/IoMv1.git
$  cd IoMv1/
$  make pdf

It fails to create the pdf.

And I get this error message:


  if [ ! -d "_build" ]; then \  mkdir _build; \     cp -R -L
  /etc/asciidoc/images _build; \    cp images/* _build; \   cp
  chapters/en/* _build; \   cp conf/* _build; \ fi; \
  
  export
  XML_CATALOG_FILES=/usr/share/xml/docbook/schema/dtd/catalog.xml; \ cd
  _build; \ a2x --format=pdf --conf-file=a2x.conf --fop --xsl-file=custom-docbook-styles.xsl -k --verbose master.asciidoc; \
  
  /bin/sh: 3: a2x: not found Makefile:65: recipe for target 'create_pdf'
  failed make: *** [create_pdf] Error 127


Same goes for creating any other file such as pdf, html, epub, kindle.
This isn't a problem with git.  The problem is that the program 'a2x' is not found.  Either you don't have it installed, or it can't be found in your path.