无法在 r 工作室中安装绘图

Question

当我在我的 r 工作室中plotly 运行时，我收到以下错误

** libs
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fopenmp -fPIC  -Wall -g -O2  -c assign.c -o assign.o
clang: error: unsupported option '-fopenmp'
make: *** [assign.o] Error 1
ERROR: compilation failed for package ‘data.table’
* removing ‘/Library/Frameworks/R.framework/Versions/3.6/Resources/library/data.table’
Warning in install.packages :
installation of package ‘data.table’ had non-zero exit status
The downloaded source packages are in
‘/private/var/folders/75/kpj4ysfd0cx4qyv5cgyhn3sw0000gn/T/RtmpZHPWIC/downloaded_packages’
> library(plotly)
Error: package or namespace load failed for ‘plotly’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
there is no package called ‘data.table’

在 R studio 终端中运行命令 Sessioninfo(( 后，我得到了以下结果：

> sessionInfo()
R version 3.6.1 (2019-07-05)
Platform: x86_64-apple-darwin15.6.0 (64-bit)
Running under: macOS Mojave 10.14.4
Matrix products: default
BLAS:   /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRlapack.dylib
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     
other attached packages:
[1] tibble_2.1.3  readr_1.3.1   tidyr_0.8.3   purrr_0.3.2   ggplot2_3.2.1 dplyr_0.8.3  
loaded via a namespace (and not attached):
[1] tidyselect_0.2.5  xfun_0.8          remotes_2.1.0     colorspace_1.4-1  vctrs_0.2.0       testthat_2.2.1    htmltools_0.4.0   usethis_1.5.1     yaml_2.2.0       
[10] rlang_0.4.0       pkgbuild_1.0.6    pillar_1.4.2      glue_1.3.1        withr_2.1.2       sessioninfo_1.1.1 munsell_0.5.0     gtable_0.3.0      devtools_2.2.1   
[19] memoise_1.1.0     labeling_0.3      knitr_1.24        callr_3.3.1       ps_1.3.0          curl_4.0          Rcpp_1.0.2        backports_1.1.4   scales_1.0.0     
[28] desc_1.2.0        pkgload_1.0.2     fs_1.3.1          hms_0.5.1         digest_0.6.20     processx_3.4.1    grid_3.6.1        rprojroot_1.3-2   cli_1.1.0        
[37] tools_3.6.1       magrittr_1.5      lazyeval_0.2.2    crayon_1.3.4      pkgconfig_2.0.2   zeallot_0.1.0     ellipsis_0.3.0    prettyunits_1.0.2 assertthat_0.2.1 
[46] rstudioapi_0.10   R6_2.4.0          compiler_3.6.1  

在clang -v命令之后：

Apple LLVM version 10.0.0 (clang-1000.10.44.4)
Target: x86_64-apple-darwin18.5.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

有谁知道会发生什么？由于library(plotly)现在不起作用

Answer 1

错误来自data.table的安装，plotly需要的软件包。并非所有平台都支持用于编译的-fopenmp选项。我假设您使用的是macOS，并且已知此选项会导致Apple LLVM 9及更高版本出错。

我认为安装支持 OpenMP 的编译器应该可以解决您的问题。请参阅此处以安装启用了 OpenMP 的clang的data.table(适用于 Mac 的启用 OpenMP 的编译器部分(。

正确安装data.table后，运行install.packages("plotly")应该可以工作。