rcpp

I had the same problem with the packages: raster, tmap and sf. Reinstalling the package Rcpp solved the problem: install.packages(‘Rcpp’) library(Rcpp)

The Makevars file, as specified in Writing R Extensions: 1.2.1 Using Makevars, is a variant of Make that is unique to R. Many of the variables you have listed are called implicit variables. The meaning is given as: Implicit rules tell make how to use customary techniques so that you do not have to specify … Read more