Hi there,
I have just downloaded RStudio and installed the two packages clang.7.0.0 and gfortran-6.1.pkg on my Mac (iOS Catalina) 10.15. However, when trying to install any further package in RStudio I seem to run into the same error again and again. What do I need to do in order for it to work? The following code is for Rcpp because this is the first package I wanted to install in order to be able to import excel data sets.
Here's the code:
> install.packages('Rcpp')
There is a binary version available
but the source version is later:
binary source needs_compilation
Rcpp 1.0.3 1.0.4 TRUE
Do you want to install from sources the package which needs compilation? (Yes/no/cancel) yes
installing the source package ‘Rcpp’
versuche URL 'https://cran.rstudio.com/src/contrib/Rcpp_1.0.4.tar.gz'
Content type 'application/x-gzip' length 2750216 bytes (2.6 MB)
==================================================
downloaded 2.6 MB
* installing *source* package ‘Rcpp’ ...
** Paket ‘Rcpp’ erfolgreich entpackt und MD5 Summen überprüft
** using staged installation
** libs
clang++ -std=gnu++11 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I../inst/include/ -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fPIC -Wall -g -O2 -c api.cpp -o api.o
clang: warning: no such sysroot directory: '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk' [-Wmissing-sysroot]
In file included from api.cpp:24:
In file included from ../inst/include/Rcpp.h:27:
In file included from ../inst/include/RcppCommon.h:29:
In file included from ../inst/include/Rcpp/r/headers.h:67:
In file included from ../inst/include/Rcpp/platform/compiler.h:100:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/cmath:305:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/math.h:301:15: fatal error: 'math.h' file not found
#include_next <math.h>
^~~~~~~~
1 error generated.
make: *** [api.o] Error 1
ERROR: compilation failed for package ‘Rcpp’
* removing ‘/Library/Frameworks/R.framework/Versions/3.6/Resources/library/Rcpp’
Warning in install.packages :
installation of package ‘Rcpp’ had non-zero exit status
The downloaded source packages are in
‘/private/var/folders/g7/32_t5f316770d0s3z9qdv1tc0000gp/T/RtmpdGAQZj/downloaded_packages’
I have just started with R as my uni has shut down due to Covid-19 and I cannot use STATA anymore – and probably won't any longer once I have mastered R. For that I seem to really need your help and I would very much appreciate it!!!