Hello Lex, Thank you for the (very) quick response! Here is the output of adding *-v -v* to my original command:
*a2x: args: ['-v', '-v', '--format=pdf', 'doc/article.txt']a2x: resource files: []a2x: resource directories: ['/usr/local/etc/asciidoc/images', '/usr/local/etc/asciidoc/stylesheets']a2x: executing: "/usr/local/bin/asciidoc.py" --backend docbook -a "a2x-format=pdf" --verbose --out-file "/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml" "/home/zam/Downloads/asciidoc-9.0.5/doc/article.txt"asciidoc: reading: /usr/local/etc/asciidoc/asciidoc.confasciidoc: reading: /home/zam/Downloads/asciidoc-9.0.5/doc/asciidoc.confasciidoc: reading: /home/zam/Downloads/asciidoc-9.0.5/doc/article.txtasciidoc: reading: /usr/local/etc/asciidoc/docbook45.confasciidoc: reading: /usr/local/etc/asciidoc/filters/code/code-filter.confasciidoc: reading: /usr/local/etc/asciidoc/filters/music/music-filter.confasciidoc: reading: /usr/local/etc/asciidoc/filters/source/source-highlight-filter.confasciidoc: reading: /usr/local/etc/asciidoc/filters/graphviz/graphviz-filter.confasciidoc: reading: /usr/local/etc/asciidoc/filters/latex/latex-filter.confasciidoc: reading: /usr/local/etc/asciidoc/lang-en.confasciidoc: reading: /home/zam/Downloads/asciidoc-9.0.5/doc/asciidoc.confasciidoc: writing: /home/zam/Downloads/asciidoc-9.0.5/doc/article.xmla2x: executing: "xmllint" --nonet --noout --valid "/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml"/bin/sh: 1: xmllint: not founda2x: ERROR: "xmllint" --nonet --noout --valid "/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml" returned non-zero exit status 127* And here is the output of that very same command, i.e., *a2x -v -v --format=pdf doc/article.txt*, once I installed *xmllint*: *[The first 18 lines of code are identical]* *a2x: executing: "xmllint" --nonet --noout --valid "/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml"I/O error : Attempt to load network entity http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml:2: warning: failed to load external entity "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"D DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd"; ^/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml:6: validity error : Validation failed: no DTD found !<article lang="en">^a2x: ERROR: "xmllint" --nonet --noout --valid "/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml" returned non-zero exit status 4* I then found this old thread of yours and others, https://groups.google.com/g/asciidoc/c/FC-eOwU8rYg, on exactly the same *non-zero exit status 4* and tried out its last two solutions --- alas, to no avail. Whereas the first solution, i.e., that of *[email protected]*, gave me the output: *[Same first 18 lines of code]* *a2x: executing: "dblatex" -t pdf -p "/usr/local/etc/asciidoc/dblatex/asciidoc-dblatex.xsl" -s "/usr/local/etc/asciidoc/dblatex/asciidoc-dblatex.sty" -V "/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml"/bin/sh: 1: dblatex: not founda2x: ERROR: "dblatex" -t pdf -p "/usr/local/etc/asciidoc/dblatex/asciidoc-dblatex.xsl" -s "/usr/local/etc/asciidoc/dblatex/asciidoc-dblatex.sty" -V "/home/zam/Downloads/asciidoc-9.0.5/doc/article.xml" returned non-zero exit status 127* the second one, i.e., that of *[email protected]*, threw me once more the above-mentioned *non-zero exit status 4 *output. It seems this is a quite common---and, strangely, old---problem relating to *a2x*. I don't know, however, what I'm supposed to now. Would very much appreciate your thoughts on this, Lex. Cheers, Zam El domingo, 28 de febrero de 2021 a la(s) 20:03:53 UTC-5, Lex Trotman escribió: > try adding -v -v yes thats twice, to the a2x command to get expanded > error messages. > > Cheers > Lex > > On Mon, 1 Mar 2021 at 10:53, 'Zam' via asciidoc > <[email protected]> wrote: > > > > > > Hello there, > > > > I have just installed AsciiDoc 9.0.5 ( > https://github.com/asciidoc-py/asciidoc-py/releases) on my Linux machine > and have successfully tested the installation (as per > https://asciidoc.org/INSTALL.html). > > > > Unfortunately, though, I'm unable to run a2x --format=pdf > doc/article.txt on the sample article.txt file included in the distribution > root directory. This is the error message I keep getting again and again: > > > > a2x: ERROR: "xmllint" --nonet --noout --valid > "/home/user/Downloads/asciidoc-9.0.5/doc/article.xml" returned non-zero > exit status 127 > > > > Any ideas of what the problem might be? > > > > Thank you very much in advance. > > > > Cheers, > > > > Zam > > > > > > -- > > You received this message because you are subscribed to the Google > Groups "asciidoc" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/asciidoc/e0aa14f5-47b4-44de-816e-195fd79bcd5bn%40googlegroups.com > . > -- You received this message because you are subscribed to the Google Groups "asciidoc" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. 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