error installing devtools after updating r

[LenaLapi]

Hello,
I have updated r to the latest version.
When I reinstalled the packages, I installed devtools (with dependencies), however, when I want to use this package, I get the following error:

install.packages("devtools")
trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/devtools_2.3.2.tgz'
Content type 'application/x-gzip' length 337605 bytes (329 KB)
==================================================
downloaded 329 KB

The downloaded binary packages are in
/var/folders/k6/6hcwnkcn099frbhql59cjg900000gn/T//RtmpuPFy8Z/downloaded_packages

library("devtools", lib.loc="/Library/Frameworks/R.framework/Versions/4.0/Resources/library")
Loading required package: usethis
Error: package or namespace load failed for ‘devtools’:
.onLoad failed in loadNamespace() for 'pkgload', details:
call: loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]])
error: there is no package called ‘rprojroot’

Could you please help me understand what's wrong?
Thanks in advance

[LenaLapi]

I'll add that I've tried to install rprojroot and it's not working.

> install.packages("rprojroot")

  There is a binary version available but the source version is later:
          binary source needs_compilation
rprojroot  1.3-2  2.0.2             FALSE

installing the source package ‘rprojroot’

trying URL 'https://cran.rstudio.com/src/contrib/rprojroot_2.0.2.tar.gz'
Content type 'application/x-gzip' length 59967 bytes (58 KB)
==================================================
downloaded 58 KB

Warning in file(con, "r") :
  cannot open file '/var/db/timezone/zoneinfo/+VERSION': No such file or directory
dyld: lazy symbol binding failed: Symbol not found: _utimensat
  Referenced from: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libR.dylib (which was built for Mac OS X 10.13)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _utimensat
  Referenced from: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libR.dylib (which was built for Mac OS X 10.13)
  Expected in: /usr/lib/libSystem.B.dylib

/Library/Frameworks/R.framework/Resources/bin/INSTALL: line 34:  5131 Done                    echo 'tools:::.install_packages()'
      5132 Abort trap: 6           | R_DEFAULT_PACKAGES= LC_COLLATE=C "${R_HOME}/bin/R" $myArgs --no-echo --args ${args}
Warning in install.packages :
  installation of package ‘rprojroot’ had non-zero exit status

The downloaded source packages are in
	‘/private/var/folders/k6/6hcwnkcn099frbhql59cjg900000gn/T/RtmpuPFy8Z/downloaded_packages’

[pieterjanvc]

Hi,

Welcome to the RStudio community!

These types of errors can be common when installing new version of R, but usually they can be solved my manually (re)installing the missing packages. I your case it seems ‘rprojroot’ is the culprit, so I suggest you install that one first, then install 'devtools again'. If there is again a missing package, repeat the process.

Hope this helps,
PJ

[nirgrahamuk]

I would recommend trying to install rprojroot from binary rather than source as then you can dodge having to read about xcode and setting up to compile on macos

[LenaLapi]

Thank you!
It worked