当你遇到提示信息“rtools is required to build R packages but is not currently installed. please download and install the appropriate version of rtools before proceeding”时,说明你需要安装Rtools以构建R包。以下是根据你的提示,分点详细解答如何安装和验证Rtools的步骤: 确认rtools是构建R包所必需的: ...
and I think most users simply want to install a compatible Rtools and not some historic Rtools that won't work with their setup anyway. If not, they're most likely advanced users that can find the appropriate installer on their own😉(for example withinstall.URL(installr:::getRtoolsUrl...
no ---Error: libudunits2.a not found--- If the udunits2 library is installed in a non-standard location, use --configure-args='--with-udunits2-lib=/usr/local/lib' for example, or --configure-args='--with-udunits2-include=/usr/include/udunits2' replacing paths with appropriate values...