Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding: - General - Posit Community
installing Rtools - General - Posit Community
Knowledge Article - University of Leeds IT
DOWNLOAD AND INSTALL Rtools
Difficulty installing Rtools, still getting the warning to install Rtools - General - Posit Community
DOWNLOAD AND INSTALL Rtools
Downloading and Installing RTools 4.0 for Windows R 4.0.0 to R 4.1.3 (Out of Date!) - YouTube