问答详情
源自：2-3 包

3.5.1版本这是什么错误？

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'

Installing package into ‘C:/Users/Andminstrator/Documents/R/win-library/3.5’

(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 ‘cerat’ is not available (for R version 3.5.1)

Warning in install.packages :

  unable to access index for repository https://cran.rstudio.com/bin/windows/contrib/3.5:

  cannot open URL 'https://cran.rstudio.com/bin/windows/contrib/3.5/PACKAGES'

> 


提问者：慕村8484123 2018-08-03 19:45

个回答

  • qq_我亦久飘零_0
    2018-10-11 15:09:38

    Warning in install.packages :

      unable to access index for repository http://mirror.lzu.edu.cn/CRAN/src/contrib

    Warning in install.packages :

      unable to access index for repository http://mirror.lzu.edu.cn/CRAN/src/contrib

    Warning in install.packages :

      package ‘caret’ is not available (for R version 3.2.1)

    Warning in install.packages :

      unable to access index for repository http://mirror.lzu.edu.cn/CRAN/bin/windows/contrib/3.2

    在WIN10 上   install.packages("caret")出现以下错误


    0
  • qq_我亦久飘零_0
    2018-10-11 02:48:57

    我的3.5.1也不能安装caret这个包


    0
  • 慕村8484123
    2018-08-25 18:04:16

    但是我前面也下过那个版本，但可以

    0
  • 海棠星
    2018-08-24 11:17:12

    你是不是想安装cerat这个包啊？显示在3.5.1这个版本中不存在此包

    0