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I want to sudo apt build-dep r-base under Ubuntu 16.04 (running in Linux on DeX Beta). To this end, I followed this link and put

deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran35/
deb http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted universe
deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted universe

into /etc/apt/sources.list, then did

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9

and then

sudo apt update
sudo apt build-dep r-base

... but obtain: 

Reading package lists... Done
E: Unable to find a source package for r-base

I've done these things before and recently under Ubuntu 19.04 (guess that's not relevant), is the aarch64 architecture a possible problem here? (I could install all sorts of preliminaries to build R from source (Tcl/Tk, GSL, GMP, MPFR...), all no problem). Let me know if you need the output of certain commands.

Note:

Concerning /etc/apt/sources.list: There was already a line deb http://ports.ubuntu.com/ubuntu-ports/ xenial main restricted and I also commented in the same line starting with deb-src instead of deb. This led to exactly the same output. The file also contains the lines deb http://ports.ubuntu.com/ubuntu-ports/ xenial universe.

Marius Hofert
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  • I just added a note. I tried to also explicitly use deb-src..., did not work either, same outcome. – Marius Hofert Jun 01 '19 at 01:23
  • If I add universe after restricted I get a lot of warnings of the form W: Target DEP-11-icons (universe/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list. Ah, right, because the line with universe is actually there... AHHHH... I see now... the universe line was only there for deb, not deb-src... Great, it works! Never had to use that explicitly. – Marius Hofert Jun 01 '19 at 01:30

0 Answers0