WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:

  1. Visit the Rtools download page: https://cran.r-project.org/bin/windows/Rtools/.
  2. Download the latest version of Rtools that matches your R version. Ensure compatibility with your R installation.
  3. Run the downloaded installer file to initiate the installation process.
  4. Follow the on-screen instructions during the installation, and make sure to select the appropriate components to install. The default settings are usually suitable for most users.
  5. If prompted, choose the destination folder for the installation. The default folder is generally recommended.
  6. Complete the installation process by clicking "Next" or "Install" as instructed.
  7. Once the installation is complete, you may need to restart R or RStudio to ensure that the changes take effect.
  8. After restarting, you should no longer encounter the warning about Rtools not being installed, and you can proceed with building R packages without any issues.