Hi, are you working on a fresh R system? This because some duplicated files might occur when adding new repositories such as the ubuntugis/unstable. I suggest you to remove all the old installations linked with rgdal such as gdal, qgis, GRASS, proj4, PROJ etc then I suggest to repeat the installation. I also suggest you to use Ubuntu Cleaner to remove all the files left by the uninstalling procedure into the system (configurations etc.)
###---Ubuntu Cleaner sudo apt install software-properties-common sudo add-apt-repository ppa:gerardpuig/ppa sudo apt update sudo apt install ubuntu-cleaner -- *Maurizio Marchi, PhD Forest Science - Ecological Mathematics* Researcher CNR - Institute of Biosciences and BioResources (IBBR), Florence division (Italy) SkypeID: maurizioxyz http://ibbr.cnr.it/ibbr/info/people/maurizio-marchi #####------##### EUFGIS National Focal Point for Italy (www.eufgis.org) Scopus Author ID: 57188626512 ResearcherID: T-3813-2019 http://b4est.eu/ project /...CPUs don't need to sleep.../ [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo