I can't tell what you did wrong as I can't see your setup -- and your email is not really readable on my screen (next time please try text mode if you can).
Bionic beaver works for other people, see eg this blog post, support slides and (primarily) video http://dirk.eddelbuettel.com/blog/2019/06/09#022_rocker_and_ppas http://dirk.eddelbuettel.com/papers/r4_rocker_and_ppas.pdf https://youtu.be/qIjWirNma-8 which shows how to install all of tidyverse and rstan, respectively, with one commands thanks to the Rutter PPAs and Ubuntu 18.04 -- Bionic Beaver. See below [1] for a quick demo using the same Docker container. Note that it also does 'apt-get update' -- maybe you just miss that. You can see the container setup here https://github.com/rocker-org/rocker/blob/master/r-ubuntu/Dockerfile which should make all this reproducible for you. Dirk edd@rob:~$ docker run --rm -ti rocker/r-ubuntu:18.04 bash root@940cde4f092f:/# apt-get update 2>&1 >/dev/null root@940cde4f092f:/# apt-get install r-base-core Reading package lists... Done Building dependency tree Reading state information... Done Suggested packages: elpa-ess r-doc-info | r-doc-pdf r-mathlib r-base-html Recommended packages: r-doc-html The following packages will be upgraded: r-base-core 1 upgraded, 0 newly installed, 0 to remove and 81 not upgraded. Need to get 24.6 MB of archives. After this operation, 2,048 B of additional disk space will be used. Get:1 http://ppa.launchpad.net/marutter/rrutter3.5/ubuntu bionic/main amd64 r-base-core amd64 3.6.0-2bionic [24.6 MB] Fetched 24.6 MB in 1min 3s (392 kB/s) debconf: delaying package configuration, since apt-utils is not installed (Reading database ... 19227 files and directories currently installed.) Preparing to unpack .../r-base-core_3.6.0-2bionic_amd64.deb ... Unpacking r-base-core (3.6.0-2bionic) over (3.6.0-1bionic) ... Processing triggers for mime-support (3.60ubuntu1) ... Setting up r-base-core (3.6.0-2bionic) ... Installing new version of config file /etc/R/Makeconf ... Installing new version of config file /etc/R/Renviron.site ... root@940cde4f092f:/# -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian