r - Docker 构建无法获取 'R.utils'

Question

在我的 Dockerfile 中，我有以下几行:

FROM rocker/verse:latest

RUN R -e "install.packages(c('R.utils'), repos = 'https://cran-archive.r-project.org')"

当我运行 docker build .我有:

> install.packages(c('R.utils'), repos = 'https://cran-archive.r-project.org')
Installing package into ‘/usr/local/lib/R/site-library’
(as ‘lib’ is unspecified)
Warning: unable to access index for repository https://cran-archive.r-project.org/src/contrib:
  cannot open URL 'https://cran-archive.r-project.org/src/contrib/PACKAGES'
Warning message:
package ‘R.utils’ is not available (for R version 4.0.2)

我是 Docker 新手，不太确定我做错了什么。我把 https://cran-archive.r-project.org/src/contrib/PACKAGES在浏览器中，它无法加载，我应该尝试不同的 repo URL 吗？
谢谢!

Answer 1

尝试任何 advertised mirrors ，并且它们应该具有适用于您的 R-4.0.2 版本的最新版本的 R.utils。
该 CRAN 镜像专门用于旧版本的 R。由于您的 R (4.0.2) 版本不是旧版本，因此在那里找不到。那cran-archive适用于不支持这些包的 R 版本(我怀疑是“归档”标签)。
来自 R FAQ 2.10 :

Since March 2016, “old” material is made available from a central CRAN archive server (https://CRAN-archive.R-project.org/).

或者也许来自 R for Mac OS X页:

Package binaries for R versions older than 3.2.0 are only available from the CRAN archive so users of such versions should adjust the CRAN mirror setting (https://cran-archive.r-project.org) accordingly.

这两个都表明 repos = 'https://cran-archive.r-project.org'应该用于旧版本的 R，但您的错误报告 R-4.0.2 (not old)