How to solve "Warning (emacs): Please update the LaTeX src-block-backend to listings"

[Guillaume MULLER]

Hi,

I'm trying to create a code block with some latex code to be interpreted 
inside. I only knew lstlistings until now. Page 
https://orgmode.org/manual/Source-blocks-in-LaTeX-export.html lists Engraved 
and Minted as possible backend. 
https://list.orgmode.org/87wnf1z1w8.fsf@gmail.com/T/ also lists verbatim.

So from what I understand, of the message "Warning (emacs): Please update the LaTeX 
src-block-backend to listings", is that the default backend is not lstlistings and 
that there is a variable somewhere that should be set to lstlistings.

However I cannot find any documentation on what variable and where to set it. Is the 
variable indeed called "src-block-backend". Is it set in global Emacs config? 
Locally in the org file?

I tried to eval (setq src-block-backend 'listings) and (setq org-latex-listings 
t) . But error is still there.


Any idea?

--
Guillaume MULLER
Associate Professor, PhD
Fayol Institue - ISI Department
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