Rstudio没有连接到CRAN

我得到这个错误Rstudio没有连接到CRAN

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不停地尝试连接到其他网址，当它连接到https://cran.rstudio.com/bin/windows/contrib/3.4/shinythemes_1.1.1.zip

只有成功为什么会出现这种情况？

设置我GLOBAL（CDN）Rstudio，安全HTTP方法和使用Internet Explorer代理服务器设置为HTTP方法。

来源

2017-07-17 stochastiq

使用不同的镜。 – Roland

转到RGUI并测试不同的存储库。 – Rockbar

-1

似乎索引服务器崩溃。您应该使用RGUI而不是RStudio来安装软件包，并首先设置选项。

来源

2017-07-17 05:18:42 g205

你好谢谢你，你是什么意思由索引服务器崩溃？这是暂时的事情吗？ – stochastiq

>抱歉，我不知道这台服务器需要多长时间，也许SAS会攻击这个，^ - ^，这是个玩笑。索引服务器用于根据您的帖子快速查找软件包。 – g205

这个答案是非常不完整的。请更新以解释您的第二句话的含义。另外，不要假设每个用户都可以随时访问Rgui。 – Thomas

Rstudio没有连接到CRAN

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