RStudio: Problem installing tibble as dependency for Bchron - r

Question

I've been trying to install Bchron for use with my dissertation data, and tibble is apparently one of the dependencies it needs. I'm fairly new to R so don't understand most of this, but I get pretty much the same error whether I try to install Bchron, tidyverse, or just tibble alone. Here's the error text (apologies if it's not conventionally formatted); any help would be appreciated:
Installing tibble [3.1.1] ...
FAILED
Error installing package 'tibble':
==================================
* installing to library ‘/Users/timdennehymac/Dropbox (Personal)/Dissertation/Chronology/Bchron3_TY/renv/staging/1’
* installing *source* package ‘tibble’ ...
** package ‘tibble’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun
ERROR: compilation failed for package ‘tibble’
* removing ‘/Users/timdennehymac/Dropbox
(Personal)/Dissertation/Chronology/Bchron3_TY/renv/staging/1/tibble’
Error: install of package 'tibble' failed [error code 1]
In addition: Warning messages:
1: /usr/bin/xcrun --find --show-sdk-path returned exit code 1
2: In system2(R(), args, stdout = TRUE, stderr = TRUE) :
running command ''/Library/Frameworks/R.framework/Resources/bin/R' CMD config CC 2>&1' had status 1
3: In if (eval(cond, envir = environment(dot))) return(eval(expr, envir = environment(dot))) :
the condition has length > 1 and only the first element will be used
4: In if (eval(cond, envir = environment(dot))) return(eval(expr, envir = environment(dot))) :
the condition has length > 1 and only the first element will be used

Answer 1

The tibble package was updated yesterday to version 3.1.1.
There is not yet any binary available for this version, even on the Rstudio CRAN mirror so you will need to compile the package yourself.
Since you appear to be running MacOS, you will need to install the Xcode command line tools in order to be able to build packages.
Open terminal.app and type the following command:
xcode-select --install
Follow the on screen prompts.
Once the command line utilities have been installed. Close R, restart and try again.