Rstudio未连接到CRAN

Question

我得到了这个错误

Installing package into ‘C:/Users/XXXXX/Downloads/RPackages’
(as ‘lib’ is unspecified)
Warning in install.packages :
  InternetOpenUrl failed: 'A connection with the server could not be established'
Warning in install.packages :
  InternetOpenUrl failed: 'A connection with the server could not be established'
Warning in install.packages :
  InternetOpenUrl failed: 'A connection with the server could not be established'
Warning in install.packages :
  unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/src/contrib:
  cannot open URL 'http://www.stats.ox.ac.uk/pub/RWin/src/contrib/PACKAGES'
Warning in install.packages :
  InternetOpenUrl failed: 'A connection with the server could not be established'
Warning in install.packages :
  InternetOpenUrl failed: 'A connection with the server could not be established'
Warning in install.packages :
  InternetOpenUrl failed: 'A connection with the server could not be established'
Warning in install.packages :
  unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/3.4:
  cannot open URL 'http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/3.4/PACKAGES'
trying URL 'https://cran.rstudio.com/bin/windows/contrib/3.4/shinythemes_1.1.1.zip'
Content type 'application/zip' length 999652 bytes (976 KB)
downloaded 976 KB

也就是说，Rstudio会不断尝试连接到其他URL，并且只有在连接到https://cran.rstudio.com/bin/windows/contrib/3.4/shinythemes_1.1.1.zip时才会成功

为什么会这样呢？

我设置了全局(CDN) Rstudio、安全HTTP方法和使用Internet Explorer代理设置的HTTP方法。

Answer 1

索引服务器似乎崩溃了。您应该使用RGUI而不是RStudio来安装软件包，请先设置选项。