Difficulty installing readxl

andresrcs · September 16, 2020, 10:14pm

It seems to be an issue with the CRAN version of Rcpp for MacOS systems, can you try installing this way?

install.packages("Rcpp", repos="https://rcppcore.github.io/drat")

This is the GitHub issue for reference

github.com/RcppCore/Rcpp

Many packages are broken on Mac with CRAN version of Rcpp -- unless 10.11 SDK is used as on CRAN

opened 05:42PM - 26 Mar 20 UTC

closed 09:02PM - 09 Apr 20 UTC

wch

The CRAN version of httpuv will not build using the CRAN version of Rcpp, on Mac…. Simple example: ```R install.packages("Rcpp") install.packages("httpuv", type = "source") ``` (For more info, see https://github.com/rstudio/httpuv/issues/260#issuecomment-604115061 and other comments in that issue.) In that issue, I and others use the Mac system toolchain, but @kevinushey has tested with the CRAN recommended toolchain and ecountered the same problems. I've learned that several other packages have similar problems: http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2020-March/010412.html In that discussion thread, it is claimed that these packages pass R CMD check on CRAN: http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2020-March/010414.html However, @jeroen has informed me that (A) CRAN does not have the resources to re-check downstream dependencies of new packages on Mac, and (B), it does not re-build the downstream dependencies either. I don't know how I could confirm (A) from the public information that CRAN provides, but it is simple to confirm that (B) is true. These are the dates in https://www.r-project.org/nosvn/R.check/r-release-osx-x86_64/ : * Rcpp_1.0.4.tgz: 2020-03-18 * httpuv_1.5.2.tgz: 2019-09-12 * dplyr_0.8.5.tgz: 2020-03-08 These dates show that Rcpp's downstream dependencies were NOT rebuilt on Mac. So from all this, I feel fairly confident that the CRAN version of Rcpp does actually break its downstream dependencies on Mac. I know that the issue is fixed in the development version of Rcpp, and I think that this is very strong reason to release a new version of Rcpp to CRAN.