[R] Rtools required

[Fox, John]

Dear Steven,

> -----Original Message-----
> From: Steven <syen using hqu.edu.cn>
> Sent: Tuesday, April 28, 2020 9:50 AM
> To: Fox, John <jfox using mcmaster.ca>
> Cc: R-help Mailing List <r-help using r-project.org>
> Subject: Re: [R] Rtools required
> 
> Hello John,
> 
> Perhaps you can help me. I am an idiot. I visited the Rtools web page and
> learn to run the following lines in R: Still I am getting the same warning
> message.
> 
>  > writeLines('PATH="${RTOOLS40_HOME}\\usr\\bin;${PATH}"', con =
> "~/.Renviron")
>  > Sys.which("make")
>                                make
> "C:\\rtools40\\usr\\bin\\make.exe

The first command writes the modification to your path in the .Renviron file in your home directory, which should be executed at the start of each R session. I assume that you executed the second command in a fresh session, and it indicates that the Rtools are indeed accessible. 

Given that, I don't know why you're still having a problem, assuming that you tried to build the package in a fresh session *after* you created .Renviron.

Sorry I can't be of more help,
 John

> 
> On 2020/4/28 下午 08:29, Fox, John wrote:
> > Dear Steven,
> >
> > Did you follow the instruction on the Rtools webpage to add
> >
> > 	PATH="${RTOOLS40_HOME}\usr\bin;${PATH}"
> >
> > to your .Renviron file?
> >
> > I hope this helps,
> >   John
> >
> >    -----------------------------
> >    John Fox, Professor Emeritus
> >    McMaster University
> >    Hamilton, Ontario, Canada
> >    Web: http::/socserv.mcmaster.ca/jfox
> >
> >> On Apr 28, 2020, at 4:38 AM, Steven <syen using hqu.edu.cn> wrote:
> >>
> >> Dear All
> >>
> >> I updated to R-4.0.0. and also installed the latest Rtools 4.0 (to
> >> now the new default folder c:\rtools40). While compiling a package
> >> (binary) I received the follow marning message saying Rtools is
> >> required. Any clues? Thanks.
> >>
> >> Steven Yen
> >>
> >> WARNING: Rtools is required to build R packages but is not currently
> >> installed. Please download and install the appropriate version of
> >> Rtools before proceeding:
> >> https://cran.rstudio.com/bin/windows/Rtools/
> >>
> >>
> >> 	[[alternative HTML version deleted]]
> >>
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