[R-pkg-devel] correcting errors in an existing package

[Uwe Ligges]

On 02.04.2023 12:12, Michael Dewey wrote:
> Comment in-line
> 
> On 02/04/2023 06:37, Ivan Krylov wrote:
>> On Fri, 31 Mar 2023 16:51:40 -0400
>> Dennis Boos <boos using ncsu.edu> wrote:
>>
>>> Also, I keep getting the message in the Rstudio check
>>>
>>> WARNING
>>>     'qpdf' is needed for checks on size reduction of PDFs
>>>
>>>
>>> but I got the latest versions of R and Rstudio and was able to get
>>> qpdf to install and loaded with library(qpdf), but Rstudio still gives
>>> that message.
>>
>> Almost there.
>>
>> The 'qpdf' package interfaces to the same code that the 'qpdf' command
>> line tool uses to do its job. R CMD check uses the latter, not the
>> former. It looks like you're on Windows, so you need to install Rtools
>> in order to get a compatible version of 'qpdf':
>> https://cran.r-project.org/bin/windows/Rtools/rtools43/rtools.html
>>
> 
> I always get the warning about qpdf (on Windows) but it does not seem to 
> be a problem on CRAN or winbuilder.
> 

You have to have qpdf installed and on your PATH.

Best,
Uwe Ligges