R: Error when installing archived package manually

Question

I am trying to install an archived R package, SciencesPo, but it's not installing, even after installing the dependencies. The following is the code and the messages that follow

install.packages("C:\Users\Overman\Downloads\SciencesPo_1.4.1.tar.gz", repos = NULL, type = "source")

Installing package into ‘C:/Users/Overman/Documents/R/win-library/3.5’ (as ‘lib’ is unspecified)

* installing source package 'SciencesPo' ...

** package 'SciencesPo' successfully unpacked and MD5 sums checked

** libs

*** arch - i386

Warning in system(cmd) : 'make' not found

ERROR: compilation failed for package 'SciencesPo'

* removing 'C:/Users/Overman/Documents/R/win-library/3.5/SciencesPo'

In R CMD INSTALL Warning in install.packages : installation of package ‘C:/Users/Overman/Downloads/SciencesPo_1.4.1.tar.gz’ had non-zero exit status

Answer 1

Installing Rtools solved the problem.