On 26/09/2020 9:14 a.m., Dirk Eddelbuettel wrote:
I had a submission fail and bomb with this error on Windows:
Flavor: r-devel-windows-ix86+x86_64
Check: re-building of vignette outputs, Result: WARNING
Error(s) in re-building vignettes:
--- re-building 'vignettefilename.Rmd' using rmarkdown
pandoc.exe: unrecognized option `--lua-filter'
unrecognized option `--lua-filter'
unrecognized option `--lua-filter'
Try pandoc.exe --help for more information.
Error: processing vignette 'vignettefilename.Rmd' failed with diagnostics:
pandoc document conversion failed with error 2
--- failed re-building 'vignettefilename.Rmd'
SUMMARY: processing the following file failed:
'vignettefilename.Rmd'
Error: Vignette re-building failed.
Execution halted
This looks like a host configuration problem:
edd@rob:~$ pandoc --help | grep lua
-L SCRIPTPATH --lua-filter=SCRIPTPATH
edd@rob:~$ pandoc --version | head -1
pandoc 2.9.2.1
edd@rob:~$
Can we expect CRAN to update its pandoc binary? Or will we have to 'for now'
rely on 'reply-all', explaining to CRAN that the failure is from their end?
As they in the press, I had reached out to CRAN but they 'have not yet
responded to requests for comments' as we know they're busy. Anybody seen
this error though?
I haven't seen that one, but I regularly get errors in rgl and tables
because of missing or insufficient pandoc on some systems. I added
lines like
SystemRequirements: pandoc (>= 1.12.3) for vignettes
to DESCRIPTION to state the Pandoc version, added rmarkdown to the
Suggests list, and added code like this to the start of HTML vignettes:
```{r echo = FALSE}
if (!requireNamespace("rmarkdown") ||
!rmarkdown::pandoc_available("1.12.3")) {
warning("This vignette requires pandoc version 1.12.3; code will not
run in older versions.")
knitr::opts_chunk$set(eval = FALSE)
}
```
This makes the test happy, though it also makes the vignette pretty
useless on systems that don't meet the stated requirements. Since
SystemRequirements is free-form, I can see why CRAN doesn't do automatic
interpretation of it, but it would be nice if they did.
Duncan Murdoch
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