For the record, I had exactly the same experience as Prof. Nash on my Ubuntu 16.04 system. Same problem. Same solution.
On Fri, May 8, 2020 at 6:18 AM J C Nash <profjcn...@gmail.com> wrote: > > Over a week ago (on r-help, my bad!) I raised a question of why the > ubuntu install instructions > > https://cran.r-project.org/bin/linux/ubuntu/README.html > > instruct users with a xenial-based system to use > > deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran40/ > > Looking at https://cloud.r-project.org/bin/linux/ubuntu/ > there is no xenial-cran40 directory. However, > https://cran.r-project.org/bin/linux/ubuntu/ > does have this directory, and I managed to update a machine > still running Linux Mint 18.3 by putting in > deb https://cran.r-project.org/bin/linux/ubuntu xenial-cran40/ > > I suspect novice users might not have found this work-around, and > it was only by chance I found it. > > My query: Is it intended that xenial support will not be available > for R 4.0? Or is this this just an oversight? Or some quirk that affects > just my environment? I've tried to ensure caches are updated. > > Side-bar: I would update the example machine, but it runs some software needed > for another use-case that is not working at all on more modern systems. > Where possible, I try to keep up to date, and am migrating the use-case over > time to a different software environment. > > Best, JN > > _______________________________________________ > R-SIG-Debian mailing list > R-SIG-Debian@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-debian _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian