First time to learn RStudio, I am running Version 1.2.5033 at Mac ios, having trouble to install a package. I tried to reinstall R but still have the same issue "installation of package ‘Rcpp’ had non-zero exit status". I have no idea how to fix it since I am beginner. Any suggestions would be a huge help, many thanks!
> install.packages("dplyr") also installing the dependency ‘Rcpp’ There is a binary version available but the source version is later: binary source needs_compilation Rcpp 1.0.4 18.104.22.168 TRUE Do you want to install from sources the package which needs compilation? (Yes/no/cancel) yes trying URL 'https://cran.rstudio.com/bin/macosx/el-capitan/contrib/3.6/dplyr_0.8.5.tgz' Content type 'application/x-gzip' length 6859111 bytes (6.5 MB) ================================================== downloaded 6.5 MB The downloaded binary packages are in /var/folders/jj/f_lyv6zd44jfhb75572cw_cc0000gn/T//RtmplzQDYx/downloaded_packages installing the source package ‘Rcpp’ trying URL 'https://cran.rstudio.com/src/contrib/Rcpp_22.214.171.124.tar.gz' Content type 'application/x-gzip' length 2751467 bytes (2.6 MB) ================================================== downloaded 2.6 MB * installing *source* package ‘Rcpp’ ... ** package ‘Rcpp’ 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 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/jj/f_lyv6zd44jfhb75572cw_cc0000gn/T/RtmplzQDYx/downloaded_packages’