[ESS] Upgraded to El Capitan (OS X 10.11) and ESS Cannot Find R

[Vincent Goulet]

> Le 1 oct. 2015 à 15:54, Marc Schwartz <marc_schwartz using me.com> a écrit :
> 
> Hi all,
> 
> Using ess-15.09 with Emacs 24.5, which worked fine on OS X Yosemite until yesterday.
> 
> I know that this has been reported on prior versions of OS X and have attempted the proposed solutions, but I am at a loss to figure this one out at the moment.
> 
> I upgraded to the new El Capitan yesterday and now ESS cannot find R. I get the familiar:
> 
>  no such file or directory, R
> 
> when using M-x R.

Same here.

> I did a re-install of R as well, along with XQuartz.

Reinstalling R 3.2.2 fixed the issue for me. I guess this reinstated the symlink in /usr/local/bin.

> R.app (the standard OS X GUI) finds R without issue and I can run R from the OS X shell (Terminal). 
> 
> When I use:
> 
>  M-x shell
> 
> in Emacs, I can then run R without issue within the shell. So the $PATH seems to be picked up correctly in those settings to /usr/local/bin/R.
> 
> I do have the location added to $PATH in my ~/.bash_profile and I have a line in my .emacs:
> 
>  (setenv "PATH" "/usr/texbin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin")
> 
> so the path is set there as as well, so that Emacs will pick up $PATH when run from the dock, which I know has been an issue.

Did you check the Emacs variable exec-path? I think this one is the key. My distribution has a patch to correctly import the shell environment at Emacs startup. For example, I have:

exec-path is a variable defined in `C source code'.
Its value is
("/opt/local/bin/" "/opt/local/sbin/" "~/bin/" "/usr/local/bin/" "/usr/bin/" "/bin/" "/usr/sbin/" "/sbin/" "/opt/X11/bin/" "/Library/TeX/texbin/" "/Applications/Emacs.app/Contents/MacOS/bin-x86_64-10_9/" "/Applications/Emacs.app/Contents/MacOS/libexec-x86_64-10_9/" "/Applications/Emacs.app/Contents/MacOS/libexec/")

Hope this helps!

v.

> Anyone else upgrade yet and/or have recommendations based upon fresh eyes?
> 
> Thanks!
> 
> Marc Schwartz
> 
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