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
source.
I hope this helps,
John
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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