I continue to receive an error installing R via dockerfile on a buster image python:3. E: The value 'buster-cran40' is invalid for APT::Default-Release as such a release is not available in the sources
My starting point is the debian buster based Python:3 image adding a couple of python specific configurations and then using the commands in the R project documentation for installing R on Buster. I got slightly different answers when I used apt versus apt-get. There were warnings about unverified sources solved by a reference to the certificate key. It turns out building the python container and commenting the R commands out allowed me to manually step through my dockerfile lines. Its repeatable that the R install fails with the error above when in the dockerfile. Running the commands manually allows the installation to finish successfully. I sense that docker is multithreaded and hits the "use buster-cran40" before it defines buster-cran40. Manually stepping through the commands keeps the preferred order. At this point I'm happy with a repeatable process. It sounds like I have been re-inventing the wheel, which has been educational for me. If someone wants to change my starting point to something that already has stable/latest production for debian, Python3 and R4 and will be updated for the future I would appreciate the head start. Thanks for the volunteer support I have received here. Dave Lange Kenmore, WA [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian