Thanks for your suggestions.  At work, I am getting a new computer.  I will 
copy ess directory from old computer (where ess works fine).

Our R version is controlled by the organization.


Sent from my iPhone

> On Dec 11, 2022, at 11:04 AM, Jeremie Juste <jeremieju...@gmail.com> wrote:
> ´╗┐Hello Naresh,
>> On Saturday, 10 Dec 2022 at 08:46, Naresh Gurbuxani via ESS-help wrote:
>> In my organization, IT security set up disables emacs package
>> installation from package archives (e.g. MELPA) using M-x
>> package-install.  Therefore, I am downloading package tar files from
>> package archives, then using M-x package-install-file command.  This
>> method has successfully installed several packages (e.g., auctex) on
>> my computer.  But with ess, I have run into problems.
> I feel for you. Do you have a personal computer that you can control? I
> see that you are working in a Windows environment. Many times I installed
> all the packages one machine then just copied the .emacs.d directory
> to the other machine, with  most packages working as expected.
> If this is an option for you ESS might work out of the box as well. You
> might just have to let ESS know where to find R.
> |(setq inferior-ess-r-program 
> "c:/Users/JeremieJuste/Documents/R/R-4.2.0/bin/x64/Rterm")
> |(add-to-list 'exec-path "c:/Users/JeremieJuste/Documents/R/R-4.2.0/bin/")
> Alternatively, for ESS you also have the git repo 
> https://github.com/emacs-ess/ESS.
> From that you can switch to branch 18.10.
> You have more information in the manual
> https://ess.r-project.org/Manual/ess.html#Installation.
> As far as I understand ESS is supposed to work even without compiling it
> on your machine. Although it won't provide the best experience but is
> expected to work.
> | (add-to-list 'load-path "/path/to/ESS/lisp")
> | (require 'ess-site)
> | (setq-default inferior-R-program-name
> |                        "c:/Program Files/Microsoft/R 
> Open/R-3.5.1/bin/x64/Rterm.exe")
> I also note that you are running R 3.5. From the 4.2,
> R uses UTF-8 as the native encoding. This has been a real pain before.
> Please see https://cran.r-project.org/doc/manuals/r-release/NEWS.html
> HTH,
> Jeremie
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