[R-SIG-Mac] sf and PROJ problem?

[Prof Brian Ripley]

On 13/01/2026 18:22, Roy Mendelssohn - NOAA Federal via R-SIG-Mac wrote:
> I just updated packages on my Mac  (apple silicon,  R 4.5.2) and the package “sf” was updated.  After the update,  anything using “sf” was throwing errors that:
> 
> proj_create: Cannot find proj.db
> proj_create: no database context specified
> 
> This did not occur before the update.  When I compiled sf from source,  the problem went away.

To be host-independent, sf needed to be installed using something like

--configure-args='--with-data-copy --with-proj-data=/opt/R/arm64/share/proj

so the proj auxiliary files are copied into the package (as directory 
proj). (Analogously for gdal files.)  This may not be needed if you have 
an installation of PROJ (the software, not the R package), as presumably 
you do if you installed sf from source.

This applies also to packages terra and vapour.

-- 
Brian D. Ripley,                  ripleybd using icloud.com
Emeritus Professor of Applied Statistics, University of Oxford