Dear Stephane and Eberhard, It should not be necessary to install Xcode (which includes otools) to install and use the Rcmdr package on macOS because it shouldn't be necessary to install the CRAN packages required from source. I'm currently running the Rcmdr on two macOS 11.1 systems, with all CRAN packages up-to-date, and don't have any problems. Stephane, have you and your students checked the Rcmdr installation notes (at <https://socialsciences.mcmaster.ca/jfox/Misc/Rcmdr/installation-notes.html>) and followed the instructions there? If you have, and still experience this problem, it would help to have some more information about what they did to install the Rcmdr and what happened. In the meantime, I'll try a fresh install of the Rcmdr and dependencies to see whether I encounter any difficulties. Best, John -- John Fox, Professor Emeritus McMaster University Hamilton, Ontario, Canada web: https://socialsciences.mcmaster.ca/jfox/ On 2021-01-11 1:55 p.m., Dr Eberhard W Lisse wrote:> Use RStudio. > > But it can be that the command line tools are missing, which you (may) need to compile packages (from source).Ask one of them to open a terminal window and type the command ?make ?version? without the ??) if that results in an error they need to enter ?sudo xcode-select ?install? and then their password when asked.If that fixes the issue have all of them do that. > > el > > ? > Sent from Dr Lisse?s iPhone > On 11 Jan 2021, 20:39 +0200, CHAMPELY STEPHANE <stephane.champely at univ-lyon1.fr>, wrote: >> Dear colleagues, >> I try to help my (french) student since five days to install Rcmd for mac and they have (ALL of them, and I use windows so I am not very skilled for that task) the same problem. When they load Rcmd, some supplementary tools (in order to use the command "otool") are missing according a message and trying to download them leads to a message indicated that it is not at the present moment available (since Thursday last week...) >> So the menu of the Rcmdr are "white". Any idea where this technical problem come from ? >> Thank you fr any help ! >> >> [[alternative HTML version deleted]] >> >> ______________________________________________ >> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code. > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >