[ESS] ESS M-x R failing in a Windows installation

[Jeremie Juste]

Hello Steve,

Yest this is a known problem on windows.

A temporary solution might be to use the command M-x ess-r-newest.
For my part I have rebinded  the above command to a key C-'.
It is not the best solution but it works for me.
If I come up with a better fix I'll update.

HTH,
Jeremie




On Friday,  5 Mar 2021 at 15:51, Steve Gutreuter via ESS-help wrote:
> M-x R is returning the message "Searching for program: No such file or
> directory, Rterm" under MS Windows.
>
> R 4.0.3 is installed in c:\Program Files\R\4.0.3, and Rterm.exe is
> present in c:/Program Files/R/R-4.0.3/bin/x64.
> My path environment variable includes c:\Program Files\R\4.0.3.
> R starts fine outside of Emacs.
> My .emacs file includes:
>    (require 'ess-rutils)
>    (setq inferior-ess-r-program "c:/Program
> Files/R/R-4.0.3/bin/x64/Rterm.exe)
> I am using Vincent Goulet's emacs-26.1-modified-2.exe and
> emacs-27.1-modified-1.exe which bundle ESS within the Emacs
> installation.
> Everything worked fine under Emacs 26.1 and earlier.  I upgraded to
> Emacs 27.1 and M-x R still worked.  I backed down to Emacs 26.1 and
> now M-x R is broken.
>
> I am baffled as to why ESS is not finding R.  Any clues?
>
> Many thanks

-- 
Jeremie Juste