3.5.1版本这是什么错误？
慕村8484123
2018-08-03 19:45
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'
>
4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
-
- 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
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- 慕村8484123
- 2018-08-25 18:04:16
但是我前面也下过那个版本，但可以
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- 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
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