ok, so youre a mac user. so its trying to compile digest for you from source, and it needs xcrun utility in order to attempt this (which may or may not work).
install.packages("digest", repo = 'https://mac.R-project.org')
info from technocrat's earlier solution:
Hi, and welcome.
For future reference, please see FAQ: What's a reproducible example (`reprex`) and how do I do one? , although it's not needed for your problem.
I see you're on MAC OS, and there is an alignment of problems today.
R package come in two flavors: binary and source. Saint Simon Urbanek of the R Core Development Team, does the occasionally heavy lifting to get the source code to successfully compile. Whenever it's an option, this is the way to go.
Unfortunately, the CRAN repository had a very rare glitch, and the mirrors all reflected it. It will be shortly fixed, but in the meantime
install.packages("tidyverse", repo = 'https://mac.R-project.org')
should work.
But someti…