Re: Pandoc error 10 when compiling document and fetching from fonts.gstatic.com

[Richard Morey <richarddmorey-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Thanks, everyone, for your help. I've finally managed a (nearly) 100% 
reproducible version that shows the mysterious "pandoc error 10" with 
minimal code and posted an issue at rstudio/rmarkdown: 
https://github.com/rstudio/rmarkdown/issues/2495

Best,
Richard

On Saturday, June 10, 2023 at 4:15:37 PM UTC+1 John MacFarlane wrote:

> I've searched the code base and there's nowhere we return a 10 error 
> code...
>
> > On Jun 10, 2023, at 1:48 AM, Richard Morey <richar...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > 
> > It is the output from an R system() call to pandoc, which returns the 
> pandoc error code. One thing I did check was that it wasn't a 1 with a 0 
> concatenated on the end through a missing \n or something silly like that. 
> It does seem to be a return code from pandoc, but I will check with 
> rmarkdown too. It is frustrating because I can't reliably reproduce it, 
> probably because it something network-related.
> > 
> > On Friday, June 9, 2023 at 6:25:31 PM UTC+1 BPJ wrote:
> > It seems from the cited error message like it is rmarkdown (Rmarkdown) 
> which exits with code 10, so probably not a Pandoc issue at all.
> > 
> > Den fre 9 juni 2023 17:34John MacFarlane <fiddlo...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> skrev:
> > That's rather strange because we don't emit error code 10:
> > https://pandoc.org/MANUAL.html#exit-codes
> > But it's a bit hard to diagnose these issues that involve external code. 
> If you can reproduce the issue with pandoc by itself, that would be 
> helpful. Also it could be useful to know what pandoc version is being used.
> > 
> > 
> > > On Jun 9, 2023, at 1:41 AM, Richard Morey <richar...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> > > 
> > > I've posted this on StackOverflow here but have not gotten any 
> interest in several days, so I'm posting here.
> > > 
> > > I'm having trouble consistently compiling a particular document with 
> rmarkdown::render. I cannot reproduce the issue reliably, unfortunately (it 
> happens roughly 1/3 of the time; consostent with it being a network error, 
> maybe?), but when it fails, I get the error: 
> > > 
> > > pandoc document conversion failed with error 10
> > > from rmarkdown. The "10" is the return code from the system command 
> that runs pandoc here.
> > > 
> > > When I set pandoc to give debugging information with --verbose the 
> following lines are the last ones in stderr:
> > > 
> > > [INFO] Fetching 
> https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSKmu1aB.woff2... 
>
> > > [INFO] Fetching 
> https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSumu1aB.woff2... 
>
> > > [INFO] Fetching 
> https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSOmu1aB.woff2... 
>
> > > [INFO] Fetching 
> https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSymu1aB.woff2... 
>
> > > [INFO] Fetching 
> https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS2mu1aB.woff2... 
>
> > > [INFO] Fetching 
> https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSCmu1aB.woff2... 
>
> > > [INFO] Fetching 
> https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSGmu1aB.woff2... 
>
> > > Error : pandoc document conversion failed with error 10
> > > The last line varies, but it always seems to be one of these fonts 
> that is the last thing pandoc reports before the error (there are 24 of 
> these font fetches in this particular document, as shown by the output in a 
> successful compile).
> > > 
> > > This leads me to believe that there is a problem in fetching one of 
> these fonts, but there's no output that says what the problem actually is, 
> and Error 10 does not seem to be a valid error code from pandoc: pandoc 
> error codes.
> > > 
> > > I'm sort of stuck debugging until I figure this out.
> > > 
> > > I also note there is a similar issue here: NYTimes and 538 Themes Give 
> Pandoc Error 10 - as a bonus, it even seems to be related to 
> fonts.gstatic.com, but that out seems to be more specific, including a 
> [WARNING] that I don't see in mine.
> > > 
> > > In case they are helpful, I've put the logs of a failure and success 
> and the pandoc command that was run in a gist here: logs
> > > 
> > > I'd appreciate any insights into what could cause this and how to fix 
> it.
> > > 
> > > Best,
> > > Richard
> > > 
> > > 
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