I think it is a MacBook Pro issue. I’m using a MacBook Pro (15-inch, 2018), R 4.0.3, MacOS 11.01 and it happens whenever R GUI accesses the Touch Bar, with fix() or load() in particular.

Unfortunately, I assumed it would go away so I didn’t take careful notes when I first saw, but I think it started happening with the final versions of Catalina and R 4.0.2. I googled the error message at the time and count find anyone else reporting it.

As far as I can tell the error is benign, the Touch Bar still works and there is no degradation in performance.


--
Peter D.M. Macdonald, D.Phil., P.Stat.   
Professor Emeritus of Math & Statistics
McMaster University
Hamilton, Ontario, Canada L8S 4K1




On Dec 2, 2020, at 8:15 AM, Bob Rudis <b...@rud.is> wrote:

After a bit of git and google poking it seems this is happening to users
of MacVim (https://github.com/macvim-dev/macvim/issues/1114) and a few
other FOSS projects.

In various GH issues (like that one) the issue claims to be resolved by
using the latest Xcode & SDK but that’s not likely to be a solution for R
GUI (which I’m assuming you're using and where this error is coming up).

Some of the threads I saw made it seem like it was happening especially on
Touch Bar-equipped MacBook Pros (but that’s not confirmed).

When I try R GUI on Big Sur (on the new M1 Mini) — either just plain R
scripts or plotting — I do not see this, nor do I see this on my Intel
MacBook Pro (both are on the latest Big Sur beta and R 4.0.3).

On Dec 2, 2020 at 7:53:26 AM, Spencer Graves <spencer.gra...@prodsyse.com>
wrote:

I didn't get this with R 4.0.3 under macOS Big Sur 11.0.1 with "time
R CMD build" / check.  I have not tried it under RStudio.


sg


On 2020-12-02 05:01, Dr Eberhard W Lisse wrote:

I don't get this in 4.0.3 (using the command line version of R) and I

don't get this in RStudio 1.3.1093 either.  I use the homebrew versions

without the R GUI even installed.


I am sure more detail will be helpful to the developers.


el


On 02/12/2020 11:09, Maria-Angeles Casares-de-Cal via R-SIG-Mac wrote:

To those in charge of R for Mac OS X:



I have installed the new Big Sur operating system and now I always get

a warning similar to:



2020-12-02 09:52:00.647 R[703:11786] Warning: Expected min height of

view: (<NSPopoverTouchBarItemButton: 0x7f9c6bb3df50>) to be less than

or equal to 30 but got a height of 32.000000.  This error will be

logged once per view in violation.



and the computer becomes very slow.



Can I do something to fix it, or will we have to wait for an R update?



Thank you very much for your attention.



Sincerely,



María-Ángeles Casares-de-Cal

[...]



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