John can you point us to an example?
Where is it in your package and what is the R CMD check output?
Guess: Within an Rd file you have to escape the % characters otherwise
they start a comment.
Best,
Uwe Ligges
On 03.09.2023 00:30, Spencer Graves wrote:
I've encountered similar issues. However, it has been long enough ago
that I don't remember enough details to say more without trying to
update my CRAN packages to see what messages I get and maybe researching
my notes from previous problems of this nature. Spencer Graves
On 9/2/23 4:23 PM, Greg Hunt wrote:
The percent encoded characters appear to be valid in that URL, suggesting
that rejecting them is an error. That kind of error could occur when the
software processing them converts them back to a non-unicode character
set.
On Sun, 3 Sep 2023 at 4:34 am, J C Nash <profjcn...@gmail.com> wrote:
I'm posting this in case it helps some other developers getting build
failure.
Recently package nlsr that I maintain got a message that it failed to
build on
some platforms. The exact source of the problem is still to be
illuminated,
but seems to be in knitr::render and/or pandoc or an unfortunate
interaction.
An update to pandoc triggered a failure to process a vignette that
had been
happily processed for several years. The error messages are
unhelpful, at
least
to me,
Error at "nlsr-devdoc.knit.md" (line 5419, column 1):
unexpected end of input
Error: pandoc document conversion failed with error 64
Execution halted
Unfortunately, adding "keep_md: TRUE" (you need upper case TRUE to
save it
when
there is no error of this type), did not save the intermediate file
in this
case. However, searching for "pandoc error 64" presented one web page
where the author
used brute force search of his document by removing / replacing sections
to find
the line(s) that caused trouble. This is a little tedious, but
effective.
In my
case, the offending line turned out to be a copied and pasted URL
https://en.wikipedia.org/wiki/Levenberg%E2%80%93Marquardt_algorithm
The coded characters can be replaced by a hyphen, to give,
https://en.wikipedia.org/wiki/Levenberg-Marquardt_algorithm
and this, when pasted in Mozilla Firefox at least, will go to the
appropriate
wikipedia page.
I'd be interested in hearing from others who have had similar
difficulties. I
suspect this is relatively rare, and causing some sort of infelicity
in the
output of knitr::render that then trips up some versions of pandoc, that
may,
for instance, be now applying stricter rules to URL syntax.
Best,
John Nash
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