Rcpp找不到Rtools:“构建共享库时发生错误1" [英] Rcpp can't find Rtools: "Error 1 occurred building shared library"

问题描述

我在使用 Rcpp 时遇到了一个简单的设置问题，但无法使其正常工作.我试着按照这个例子 http://www.r-bloggers.com/user2013-the-rcpp-教程/但是当执行这段代码时:

I am running into a simple setup problem with Rcpp and I cannot get it to work. I tried to follow this example http://www.r-bloggers.com/user2013-the-rcpp-tutorial/ But when executing this code:

library(Rcpp)
evalCpp("1 + 1", showOutput= TRUE)

我得到这个输出

C:/R/R-30~1.1/bin/x64/R CMD SHLIB -o "sourceCpp_33280.dll" "file8d01b0a675b.cpp" 
Error in sourceCpp(code = code, env = env, rebuild = rebuild, showOutput = showOutput,  : 
  Error 1 occurred building shared library.
WARNING: Rtools is required to build R packages but is not currently installed. 
Please download and install the appropriate version of Rtools before proceeding:

为了让它发挥作用，我做了以下事情:

I have done the following things in an attempt to make it work:

• 使用 install.Rtools() 安装了 Rtools 31
• 在 C:\R\R-3.0.1 中安装了 R
• 库文件存放在 C:\R\R-3.0.1\library
• 在 C:\R\RStudio 中安装了 Rstudio
• 将我的脚本放在 C:\R

大多数类似的问题似乎表明文件路径中有一个空格，因此我几乎移动了所有我能移动的东西.但它仍然无法找到 Rtools.我在笔记本电脑和台式机上都试过了，但都不起作用，所以可能是我在结构上做错了.

most similar issues seem to suggest that a space was in the file path, therefore i moved pretty much everything I could. But still it fails to locate Rtools. I tried it on my laptop and on my desktop and both don't work, so there is probably something structural I am doing wrong.

推荐答案

看起来您的 R 二进制文件和 Rtools 目录都不在您系统的 PATH 环境变量中.试试这个:

Looks like neither your R binaries nor Rtools directories are in your system's PATH environment variable. Try this:

> writeLines(strsplit(Sys.getenv("PATH"), ";")[[1L]])
C:\R\Rtools\bin
C:\R\Rtools\gcc-4.6.3\bin
C:\R\R-devel\bin\x64
[... and so on ...]

如果您的目录 C:\R\R-3.0.1\bin\x64\ 和 C:\R\Rtools\bin\ &C:\R\Rtools\gcc-*.*.*\bin\(用你的 gcc-binaries 版本替换 \gcc-*-*-*\)没有列出，需要的找不到组件.为了安全起见，还要创建一个名为 CYGWIN 的系统变量，其值为 nodosfilewarning.

If your directories C:\R\R-3.0.1\bin\x64\ and C:\R\Rtools\bin\ & C:\R\Rtools\gcc-*.*.*\bin\ (replace \gcc-*-*-*\ with your version of the gcc-binaries) are not listed, the needed components can't be found. To be on the safe side, also create a system variable called CYGWIN with the value nodosfilewarning.

更改/创建PATH 和CYGWIN 变量后，重新启动.然后它应该可以工作，您可以将源代码任何地方放在您的机器上，也可以使用 R CMD SHLIB 手动编译它们.

After changing/creating the PATH and CYGWIN variables, reboot. Then it should work and you can place your sources anywhere on your machine and also compile them manually using R CMD SHLIB.

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