I have recently re-installed R on my Ubuntu system to get R 3.5 and found this to have worked:
# you may need to remove incumbent repos e.g. with: sudo apt-add-repository --remove ppa:marutter/rrutter # add new repos sudo apt-add-repository ppa:marutter/rrutter3.5 # for base R sudo apt-add-repository ppa:marutter/c2d4u4.5 # for pkgs - this saved me lots of time installing my set-up At the end of it these are the only R-related repos I have: apt policy | grep 3.5 # 500 http://ppa.launchpad.net/marutter/rrutter3.5/ubuntu xenial/main i386 Packages # release v=16.04,o=LP-PPA-marutter-rrutter3.5,a=xenial,n=xenial,l=RRutter v3.5,c=main,b=i386 # 500 http://ppa.launchpad.net/marutter/rrutter3.5/ubuntu xenial/main amd64 Packages # release v=16.04,o=LP-PPA-marutter-rrutter3.5,a=xenial,n=xenial,l=RRutter v3.5,c=main,b=amd64 # 500 http://ppa.launchpad.net/marutter/c2d4u3.5/ubuntu xenial/main i386 Packages # release v=16.04,o=LP-PPA-marutter-c2d4u3.5,a=xenial,n=xenial,l=cran2deb4ubuntu_3.5,c=main,b=i386 # 500 http://ppa.launchpad.net/marutter/c2d4u3.5/ubuntu xenial/main amd64 Packages # release v=16.04,o=LP-PPA-marutter-c2d4u3.5,a=xenial,n=xenial,l=cran2deb4ubuntu_3.5,c=main,b=amd64 Hope this helps. Please add-to this advice anyone who's more experienced than me in this. Thanks to all involved in getting this working and documented. Robin On Wed, Jun 13, 2018 at 10:22 AM, Syed Murtuza baker < syed.murtuzaba...@manchester.ac.uk> wrote: > Hello All, > When I try to install r-base-dev on my Ubuntu 16.04 it gives me the > following error > > r-base-dev : Depends: dh-r but it is not installable > E: Unable to correct problems, you have held broken packages. > > I added the following two repos > > deb https://mirrors.ebi.ac.uk/CRAN/bin/linux/ubuntu xenial-cran35 > deb http://uk-mirrors.evowise.com/ubuntu/ bionic-backports main > restricted universe > > but still giving error. Could you please suggest me how to fix it. > > Thank you. > > Best Regards, > Syed > > > ———————————— > Dr. Syed Murtuza Baker > Bioinformatics Core Facility > Faculty of Biology, Medicine & Health > The University of Manchester > > > [[alternative HTML version deleted]] > > _______________________________________________ > R-SIG-Debian mailing list > R-SIG-Debian@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-debian > [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list R-SIG-Debian@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-debian