Error(s) in re-building vignettes:
  ...
--- re-building ‘An_Introduction_to_rasciidoc.Rasciidoc’ using rasciidoc
Warning in run_knit(file_name, knit = knit, envir = envir, write_to_disk = write_to_disk) :
  Setting option knit to TRUE based on the file contents!


processing file: /home/ripley/R/packages/tests32/rasciidoc.Rcheck/vign_test/rasciidoc/vignettes/An_Introduction_to_rasciidoc.Rasciidoc
  ordinary text without R code

label: unnamed-chunk-1
  ordinary text without R code

label: unnamed-chunk-2
/bin/sh: source-highlight: not found
asciidoc: FAILED: knit.asciidoc: line 24: filter error: source-highlight --gen-version -f xhtml -s r: [Errno 32] Broken pipe
  ordinary text without R code

label: unnamed-chunk-3
  ordinary text without R code

label: unnamed-chunk-4
  ordinary text without R code

label: unnamed-chunk-5
/bin/sh: source-highlight: not found
asciidoc: FAILED: knit.asciidoc: line 26: filter error: source-highlight --gen-version -f xhtml -s r: [Errno 32] Broken pipe
  ordinary text without R code

label: unnamed-chunk-6
  ordinary text without R code

label: unnamed-chunk-7
  ordinary text without R code

output file: /home/ripley/R/packages/tests32/rasciidoc.Rcheck/vign_test/rasciidoc/vignettes/An_Introduction_to_rasciidoc.asciidoc

Warning in rasciidoc(file_name = adoc, write_to_disk = write_to_disk, asciidoc_args) :
  Can't find program `source-highlight`. Please install first (http://www.gnu.org/software/src-highlite/).
Warning in rasciidoc(file_name = adoc, write_to_disk = write_to_disk, asciidoc_args) :
  Can't find program `asciidoc`. Please install first (www.asciidoc.org).
/bin/sh: source-highlight: not found
asciidoc: FAILED: An_Introduction_to_rasciidoc.asciidoc: line 22: filter error: source-highlight --gen-version -f xhtml -s r: [Errno 32] Broken pipe
Error: processing vignette 'An_Introduction_to_rasciidoc.Rasciidoc' failed with diagnostics:
Failed to locate ‘weave’ output file ‘An_Introduction_to_rasciidoc.pdf’ or ‘An_Introduction_to_rasciidoc.html’ for vignette with name ‘An_Introduction_to_rasciidoc’ and engine ‘rasciidoc::rasciidoc’. The following files exist in working directory ‘/home/ripley/R/packages/tests32/rasciidoc.Rcheck/vign_test/rasciidoc/vignettes’: ‘An_Introduction_to_rasciidoc.Rasciidoc’ (3420 bytes), ‘An_Introduction_to_rasciidoc.asciidoc’ (11103 bytes)
--- failed re-building ‘An_Introduction_to_rasciidoc.Rasciidoc’

SUMMARY: processing the following file failed:
  ‘An_Introduction_to_rasciidoc.Rasciidoc’

Error: Vignette re-building failed.
Execution halted