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...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 at rob:~$ docker run --rm -ti rocker/r-ubuntu:18.04 bash root at 940cde4f092f:/# apt-get update 2>&1 >/dev/null root at 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-mathl...

Hello, I appear to have a similar issue as?Willem Ligtenberg (Disco Dingo repository issues,?Thu May 2 19:01:04 CEST 2019), except on a completely fresh installation of Ubuntu?18.04 LTS (Bionic Beaver). After updating and upgrading packages and adding the repo "deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/" and associated key, attempting to install r-base fails due to