I've done the following steps, but am unable to source in the Cpp files. Details of my session and sessionInfo are below. Am I missing a package, or a critical step? I found one answer regarding the 'make" error on stackoverflow suggesting the problem is resolved by grabbing the more recent version of Rtools, which I have done.
Thanks. > install.packages('installr') > library(installr) > install.Rtools() This step installed Rtools35.exe correctly as far as I can tell. Then, > library(devtools) Loading required package: usethis > library(Rcpp) > sourceCpp("test.cpp") Warning message: In system(cmd) : 'make' not found Error in sourceCpp("test.cpp") : Error 1 occurred building shared library. WARNING: The tools required to build C++ code for R were not found. Please download and install the appropriate version of Rtools: http://cran.r-project.org/bin/windows/Rtools/ > sessionInfo() R version 3.6.1 (2019-07-05) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 10 x64 (build 18362) Matrix products: default locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] Rcpp_1.0.2 devtools_2.1.0 usethis_1.5.1 htmltab_0.7.1 [5] installr_0.22.0 stringr_1.4.0 loaded via a namespace (and not attached): [1] magrittr_1.5 pkgload_1.0.2 R6_2.4.0 rlang_0.3.4 [5] httr_1.4.1 tools_3.6.1 pkgbuild_1.0.5 sessioninfo_1.1.1 [9] cli_1.1.0 withr_2.1.2 remotes_2.1.0 rprojroot_1.3-2 [13] assertthat_0.2.1 digest_0.6.19 crayon_1.3.4 processx_3.4.1 [17] callr_3.3.1 fs_1.3.1 ps_1.3.0 testthat_2.2.1 [21] curl_4.0 memoise_1.1.0 glue_1.3.1 stringi_1.4.3 [25] compiler_3.6.1 backports_1.1.4 desc_1.2.0 prettyunits_1.0.2 [29] XML_3.98-1.20 > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.