On Feb 13, 2021, at 5:41 PM, r-sig-mac-request at r-project.org wrote: xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
https://ma.ttias.be/mac-os-xcrun-error-invalid-active-developer-path-missing-xcrun/