rtools
Install Rtools on R version 3.0.2
Rtools is not a package. See here: https://cran.r-project.org/bin/windows/Rtools/
No RTools compatible with R version 3.5.0 was found
The problem was Rtools 3.5 was not in your Windows system PATH thus find_rtools couldn’t find it. Another possibility was that an incompatible version of Rtools was in the PATH Best practice for installing Rtools: Download the latest version Install RTools at default recommended location (at the root of your C drive): C:/Rtools/ <Important> Check … Read more