I was facing this problem while installing R package devtools. My R studio is in Anaconda, and it's the latest version. The code is this:
install.packages("devtools")
And I got response as follows:
also installing the dependency ‘git2r’
trying URL 'https://cran.rstudio.com/src/contrib/git2r_0.21.0.tar.gz'
Content type 'application/x-gzip' length 1155512 bytes (1.1 MB)
==================================================
downloaded 1.1 MB
trying URL 'https://cran.rstudio.com/src/contrib/devtools_1.13.5.tar.gz'
Content type 'application/x-gzip' length 486555 bytes (475 KB)
==================================================
downloaded 475 KB
* installing *source* package ‘git2r’ ...
** package ‘git2r’ successfully unpacked and MD5 sums checked
checking build system type... x86_64-apple-darwin17.6.0
checking host system type... x86_64-apple-darwin17.6.0
checking for gcc... x86_64-apple-darwin13.4.0-clang
checking whether the C compiler works... no
configure: error: in `/private/var/folders/mh/df2k68vs4g3714qyztvg2y980000gn/T/RtmppuLmjL/R.INSTALL8f6b17805a/git2r':
configure: error: C compiler cannot create executables
See `config.log' for more details
ERROR: configuration failed for package ‘git2r’
* removing ‘/Users/nora/anaconda3/lib/R/library/git2r’
Warning in install.packages :
installation of package ‘git2r’ had non-zero exit status
ERROR: dependency ‘git2r’ is not available for package ‘devtools’
* removing ‘/Users/nora/anaconda3/lib/R/library/devtools’
Warning in install.packages :
installation of package ‘devtools’ had non-zero exit status
The downloaded source packages are in
‘/private/var/folders/mh/df2k68vs4g3714qyztvg2y980000gn/T/Rtmpyjv9BV/downloaded_packages’
Updating HTML index of packages in '.Library'
Making 'packages.html' ... done
To fix this problem, I've tried the following but nothing changed:
- check Xcode and command line tools, and make surethe command line tools is the latest version.
- update all the anaconda package.
- update homebrew
- update gcc
- restart my laptop.
Now I've installed this package by using this code in terminal:
conda install -c r r-devtools
when I type install.packages("devtools") in my R console, nothing seems wrong and I saw feedback as following:
trying URL 'https://cran.rstudio.com/src/contrib/devtools_1.13.5.tar.gz'
Content type 'application/x-gzip' length 486555 bytes (475 KB)
==================================================
downloaded 475 KB
* installing *source* package ‘devtools’ ...
** package ‘devtools’ successfully unpacked and MD5 sums checked
** R
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded
* DONE (devtools)
The downloaded source packages are in
‘/private/var/folders/mh/df2k68vs4g3714qyztvg2y980000gn/T/Rtmpyjv9BV/downloaded_packages’
Updating HTML index of packages in '.Library'
Making 'packages.html' ... done
But I'm not sure whether I still have C compiler problem. If so, I still want to fix that for future's convenience. And still, I don't know why I countered this problem in the first place.
