[R] R 4.0.2 not running on macOS 10.15.6

Marc Schwartz m@rc_@chw@rtz @end|ng |rom me@com
Fri Sep 4 14:05:37 CEST 2020

> On Sep 3, 2020, at 9:26 PM, Michael Feher <mfeher1971 using gmail.com> wrote:
> Greetings,
> I am a brand-new user to R and want to install and run this on my iMac running macOS 10.15.6.  I successfully downloaded the correct package, installed it with no problems (I was not given any options for Tcl/Tk or Texinfo), and started it up as any other normal app.  Some introductory commands like license() and help() worked just fine.  But when I went to execute demo(), it just beach-balled.  I’ve had to force-quit R a number of times.
> Yes, I read the Mac installation instructions.
> Thanks in advance.
> Mike


Sounds like you need to install XQuartz:


which is referenced in the macOS installation instructions and the macOS specific FAQ.

Also, be aware that there is a macOS specific e-mail list here:


which is where macOS specific R issues should be posted.

You will need to re-install XQuartz any time you upgrade/install a new version of R.


Marc Schwartz

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