使用R时，在Mac上找不到`/usr/local/clang6/lib/liomp.dylib`

Question

我下载了最新的R R-3.5.3.pkg并安装在我的Mac (OS X 10.14.1)上。

然后我用install.packages('littler')安装了littler。

trying URL 'https://cran.rstudio.com/bin/macosx/el-capitan/contrib/3.5/littler_0.3.7.tgz'
Content type 'application/x-gzip' length 606052 bytes (591 KB)
==================================================
downloaded 591 KB


The downloaded binary packages are in
    /tmp/mktemp/RtmpOW3zHj/downloaded_packages

$ $HOME/Library/R/3.5/library/littler/bin/r
dyld: Library not loaded: /usr/local/clang6/lib/libomp.dylib
  Referenced from: /Users/xxx/Library/R/3.5/library/littler/bin/r
  Reason: image not found
Abort trap: 6

有没有办法解决这个问题？谢谢。

Answer 1

您缺少clang6附带的OMP支持。Simon Urbanek在CRAN网站上提供了该编译器：https://cran.r-project.org/bin/macosx/tools/。如果您希望从源代码编译R包(或者如果您需要MacOS没有提供的工具)，那么应该同时安装clang6和gfortran6.1。