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Date: Thu, 07 Mar 2024 00:30:03 +0000
To: Esteban Venialgo <tetumetal@posteo.net>
From: William Denton <william@williamdenton.org>
Cc: emacs-orgmode@gnu.org
Subject: Re: R session error (org-babel)
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On Wednesday, March 6th, 2024 at 05:56, Esteban Venialgo <tetumetal@posteo.=
net> wrote:

> I tried the =3Demacs -Q=3D, and still get the same problem. Before export=
ing the code, I ran this lisp from the scratch pad:
>=20
> ;; enable language support for R
> (org-babel-do-load-languages
> 'org-babel-load-languages
> '((R . t)
> (shell . t)
> (latex . t)
> (emacs-lisp . nil)))

Hmm! It does work for me.  I'm on Ubuntu 22.04, running Emacs and Org from =
the development tree (so 30.0.50 and 9.7-pre).

I ran =3Demacs -Q=3D (and also =3Dmake repro=3D from in the Org source tree=
, which is another useful tool for testing), and executed these lines in a =
scratch buffer:

# -----
(org-babel-do-load-languages 'org-babel-load-languages '(
     (R . t)
     (shell . t)
     ))
(add-to-list 'load-path "~/.emacs.d/elpa/ess-20240229.2054")=20
(require 'ess-r-mode)
# -----

We're the same up to ESS.  (I had to check the version number on ESS to get=
 the path right, but that's the latest release installed.)  Looking back, d=
id you not mention using ESS?  I've never used R in Emacs without it.  If y=
ou weren't using ESS, what happens if you install it and use it?=20

Just for the sake of documentation: then I made an r.org file with the snip=
pet and ran it, and it worked:

# ----
#+begin_src R :session test
  A <- 1
#+end_src
#----


Cheers,

Bill

--
William Denton
https://www.miskatonic.org/
Librarian, artist and licensed private investigator.
Toronto, Canada