can't install devtools in my Rstudio Macos

[m3rouf23]

i tried too much to install devtools on my mac R studio but id doesn't , and this is the error appears:

Warning in install.packages :
installation of package ‘devtools’ had non-zero exit status

The downloaded source packages are in
‘/private/var/folders/gj/b_jyp39x3191_5x00dbjkckh0000gn/T/RtmpSEJ4zH/downloaded_packages’
Updating HTML index of packages in '.Library'
Making 'packages.html' ... done

[andresrcs]

Can you post the complete error message you get? you are omitting the informative parts.

[m3rouf23]

i tried this:

install.packages("devtools", type = "source")
trying URL 'https://cran.rstudio.com/src/contrib/devtools_2.3.2.tar.gz'
Content type 'application/x-gzip' length 373387 bytes (364 KB)
==================================================
downloaded 364 KB

• installing source package ‘devtools’ ...
  ** package ‘devtools’ successfully unpacked and MD5 sums checked
  ** using staged installation
  ** R
  ** inst
  ** byte-compile and prepare package for lazy loading
  ** help
  *** installing help indices
  *** copying figures
  ** building package indices
  ** installing vignettes
  ** testing if installed package can be loaded from temporary location
  ** testing if installed package can be loaded from final location
  ** testing if installed package keeps a record of temporary installation path
• DONE (devtools)

The downloaded source packages are in
‘/private/var/folders/gj/b_jyp39x3191_5x00dbjkckh0000gn/T/RtmprpKSBz/downloaded_packages’

library(devtools)

but when try to use it it loading:
Loading required package: usethis

[andresrcs]

You are not showing any error message so far, can you post the complete output you get when you load devtools?