RStudio 安裝包失敗

Question

我想安裝 package arulesViz 但 RStudio 給了我這個：

Warning in install.packages :
  unable to access index for repository https://cran.rstudio.com/src/contrib:
  cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES'
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:

https://cran.rstudio.com/bin/windows/Rtools/
Installing package into ‘C:/Users/Jacque de l'est/Documents/R/win-library/4.1’
(as ‘lib’ is unspecified)
Warning in install.packages :
  unable to access index for repository https://cran.rstudio.com/src/contrib:
  cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES'
Warning in install.packages :
  package ‘arulesViz’ is not available for this version of R

A version of this package for your version of R might be available elsewhere,
see the ideas at
https://cran.r-project.org/doc/manuals/r-patched/R-admin.html#Installing-packages
Warning in install.packages :
  unable to access index for repository https://cran.rstudio.com/bin/windows/contrib/4.1:
  cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/4.1/PACKAGES'

如何解決這個問題？

Answer 1

R 需要Rtools從源代碼構建包——只需下載並安裝它。 :)