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 > > [...] > > > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac > [[alternative HTML version deleted]] _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac