r/releases/download/2022-02-06/rtools40-x86_64.exe">installer</a>
utility. After running the installer, you must add
the location of the Rtools compiler and make utilities
to the <code>PATH</code> environment variable. If you have <code>Rtools40</code>, these should be:</p>
<pre><code>C:\RTools\RTools40\usr\bin
C:\RTools\RTools40\mingw64\bin</code></pre>
<p>See <a href="https://helpdeskgeek.com/windows-10/add-windows-path-environment-variable/">these instructions</a>
for details on changing the <code>PATH</