[R-SIG-Mac] Problems with RStudio for mac

Thu Jul 17 03:09:36 CEST 2025

Thanks Bill for the recommendation.
I installed Positron but I got this message, it doesn't seem to connect
with R.

R 4.5.1 failed to start up (exit code -1)

The kernel exited before a connection could be established
dyld: Symbol not found:
__ZTTNSt3__118basic_stringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEE
Referenced from:
/Applications/Positron.app/Contents/Resources/app/extensions/positron-r/resources/ark/ark
Expected in: /usr/lib/libc++.1.dylib
in
/Applications/Positron.app/Contents/Resources/app/extensions/positron-r/resources/ark/ark

El mié, 16 jul 2025 a las 7:14, <bill+rsigmac using 8pawexpress.com> escribió:

> I’m neither a Posit/RStudio employee/dev nor do I use their IDEs atm, but
> … while RStudio IDE requires MacOS 13+, the “next-gen” IDE from Posit is
> Positron, and it allegedly depends only on MacOS 10.15+ with universal,
> intel, and arm64 binaries. See https://positron.posit.co/download.html.
>
> I’ve played briefly with it, and while I’m an avid emacs/ess user (never
> been much for RStudio IDE itself), the Positron experience is getting much
> closer to what I hope for. There are discussions on migrating (keyboard
> shortcuts, mental assumptions, etc) from RStudio IDE to reduce the change,
> and I believe there are few things one can do in RStudio that are not also
> feasible in Positron.
>
> Good luck,
> Bill
>
> On 7/15/25 18:36, Simon Urbanek wrote:
>
> José,
>
> I agree that latest RStudio dropping support for a very large number of Macs is unfortunate. It may be worth raising it with Posit - we have very deliberately not increased the macOS version requirement of R binaries, because it would affect way too may R users based on the estimates from weblogs (as Intel Mac owners simply cannot upgrade).
>
> That said, in the meantime you can install any older R version as well - see
> https://cran.r-project.org/bin/macosx/big-sur-x86_64/base/
>
> to match the last working RStudio to see if it will work for your use case.
>
> Of course, for regular work you can switch to the Mac GUI which always supports the same macOS version as R, or any of the other GUI alternatives that don’t embed R.
>
> Cheers,
> Simon
>
>
>
>
> On 16/07/2025, at 02:37, José Carlos Guerrero Antúnez <jcgantunez using gmail.com> <jcgantunez using gmail.com> wrote:
>
> Thanks Kevin and Roy,
> I work with two old Macs with the BigSur operating system (one at home and
> one at school) and I can't upgrade, which prevents me from having the
> newest version of RStudio because it doesn't meet the requirements.
> I wanted to install the caretSDM package, on the Mac at home I had version
> 4.3.3 and the package recommended me to use a newer version of R and I
> upgraded to version 4.5.1. In the case of the faculty Mac I am using
> version R.4.4.0 and I have no problem with the caretSDM package.
> From my ignorance I dare to say that there is a package that is generating
> the conflict with R version 4.5.1.
>
> Best regards,
>
> El mar, 15 jul 2025 a las 1:02, roy (<rollinforall using gmail.com> <rollinforall using gmail.com>) escribió:
>
>
> Hi José
> fwiw, I tried R 4.5.1 on my macmini (15.5, Intel) with an old version of
> RStudio and received the same similar error you reported.  When I updated
> to the latest RStudio (Version 2025.05.1+513 (2025.05.1+513)) my quick test
> (matrix multiplication) worked without error.
>
> cheers, roy
>
>
> On Mon, Jul 14, 2025 at 8:42 PM Kevin Ushey <kevinushey using gmail.com> <kevinushey using gmail.com> wrote:
>
>
> Did you already try installing the latest available release of RStudio? In
> general, R and RStudio should be upgraded together.
>
> If you still have problems with the latest release of RStudio, you should
> file a big report at https://github.com/rstudio/rstudio/issues.
>
> On Mon, Jul 14, 2025, 6:54 PM José Carlos Guerrero Antúnez <jcgantunez using gmail.com> wrote:
>
>
> Thank you Jeff for your suggestions, I will keep them in mind.
>
>
>
>
> El lun, 14 jul 2025 a las 22:45, Jeff Newmiller (<
>
> jdnewmil using dcn.davis.ca.us
>
> )
>
> escribió:
>
>
> R is maintained by the volunteer R Core group, while RStudio is
>
> maintained
>
> by Posit. You may get more thorough help with RStudio if you ask at
>
> the
>
> Posit forum.
>
> That said, as a rule the RStudio team has to play "catch-up" when R is
> upgraded by R Core. You may be running an older version of RStudio
>
> that
>
> does not know how to deal with R 4.5.1. Check for a newer version of
> RStudio, or try uninstalling R 4.5.1 and re-installing an older
>
> version
>
> R... or try using R with a different text editor (there are a lot of
>
> them).
>
> RStudio is a fine option, but it is not the only way to use R.
>
> On July 14, 2025 5:54:47 PM PDT, "José Carlos Guerrero Antúnez" <jcgantunez using gmail.com> wrote:
>
> Hi,
>
> I am not sure if this is the right forum for this query, and I
>
> apologize
>
> in
>
> advance.
> I recently upgraded to version R 4.5.1, and I use the RStudio
>
> program. I
>
> can open it without any problem, but I am experiencing crashes
>
> whenever
>
> I
>
> perform any action in the program. I receive the following message:
> "R Session Aborted. R encountered a fatal error. The session was
> terminated. Start New Session."
>
> Could you please recommend what I should do?
>
> Thank you very much
>
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>
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>
> --
> Sent from my phone. Please excuse my brevity.
>
>
> --
> José Carlos Guerrero
>
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> _______________________________________________
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>
> --
> José Carlos Guerrero
>
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>
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> 
>

-- 
José Carlos Guerrero

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