I'm in trouble for read a raster layer in R studio software. When I run the command line for read a raster the software returns me the message:
NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
I use OS Ubuntu 15
Somebody can help to fix this issue.
This is related to a bad version of PROJ.4 that should go away if you update it. Did you do a search on "no proj_defs.dat in PROJ.4 shared files" ? You would find helpful answers, for example here