[R] Troubles installing Rcmdr on Mac

John Fox j|ox @end|ng |rom mcm@@ter@c@
Tue Jan 12 03:30:46 CET 2021

Dear Stephane,

I've taken yet another look at this and have an additional suggestion 
for your students to try:

	install.packages("Rcmdr", type="mac.binary")

That should avoid any attempt to install Rcmdr package dependencies from 

I hope this helps,

On 2021-01-11 3:53 p.m., John Fox wrote:
> Dear Stephane and Eberhard,
> As an addendum to my previous response, I uninstalled the Rcmdr package 
> and all of its direct and indirect dependencies and then reinstalled the 
> package -- on a macOS 11.1 system running R 4.0.3 with all other 
> packages up-to-date.
> I then reinstalled the Rcmdr and dependencies via the command 
> install.packages("Rcmdr"), and responded "no" when asked whether to 
> install some packages from source (perhaps this is the explanation for 
> the problem, if your students responded "yes" without having Xcode 
> installed).
> Following these steps, everything (still) works fine. I therefore can't 
> duplicate your students' problem, which makes it hard to suggest how to 
> fix it, without having some additional details.
> Best,
>   John
> On 2021-01-11 3:33 p.m., John Fox wrote:
>> 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
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