when i use > find_rtools() function, i got following error:
I have installed Rtools atleadt 10 times but everytime i try to use it, i got below message:
WARNING: Rtools is required to build R packages, but the version of Rtools previously installed in C:/Program Files (x86)/rtools has been deleted.
Please download and install Rtools custom from https://cran.r-project.org/bin/windows/Rtools/.