Question

我从来源（./configure，./make，./make install）安装了R-3.2.2。它工作得很好但是当我尝试从任何存储库安装任何软件包时，我收到以下消息：

> install.packages("igraph")
Installing package into ‘/home/jonathan/R/x86_64-pc-linux-gnu-library/3.2’
(as ‘lib’ is unspecified)
--- Please select a CRAN mirror for use in this session ---
Error in download.file(url, destfile = f, quiet = TRUE) : 
  unsupported URL scheme
HTTPS CRAN mirror 

 1: 0-Cloud [https]             2: Austria [https]          
 3: China (Beijing 4) [https]   4: China (Hefei) [https]    
 5: Colombia (Cali) [https]     6: France (Lyon 2) [https]  
 7: Iceland [https]             8: Russia (Moscow 1) [https]
 9: Switzerland [https]        10: UK (Bristol) [https]     
11: UK (Cambridge) [https]     12: USA (CA 1) [https]       
13: USA (KS) [https]           14: USA (MI 1) [https]       
15: USA (TN) [https]           16: USA (TX) [https]         
17: USA (WA) [https]           18: (HTTP mirrors)           


Selection: 10
Warning: unable to access index for repository https://www.stats.bris.ac.uk/R/src/contrib
Warning message:
package ‘igraph’ is not available (for R version 3.2.2)

我没有使用任何代理，我尝试按照here进行操作 - 我已经使用apt-get安装了build-essentials和r-base-dev，但仍然存在错误。

有什么奇怪的是，在同一台机器上使用RStudio，下载的软件包工作正常，只有当我从命令行使用R时才会出现问题。

Answer 1

您选择的镜像是https镜像。您需要设置安全连接才能使用https mirrors 选择18 (HTTP mirrors)，您将看到其他镜像列表。选择其中一个

可替换地;你可以使用chooseCRANmirror()：

> chooseCRANmirror()
HTTPS CRAN mirror 

 1: 0-Cloud [https]             2: Austria [https]          
 3: Chile [https]               4: China (Beijing 4) [https]
 5: Colombia (Cali) [https]     6: France (Lyon 2) [https]  
 7: Germany (Münster) [https]   8: Iceland [https]          
 9: Russia (Moscow) [https]    10: Spain (A Coruña) [https] 
11: Switzerland [https]        12: UK (Bristol) [https]     
13: UK (Cambridge) [https]     14: USA (CA 1) [https]       
15: USA (KS) [https]           16: USA (MI 1) [https]       
17: USA (TN) [https]           18: USA (TX) [https]         
19: USA (WA) [https]           20: (HTTP mirrors)           


Selection: 20
HTTP CRAN mirror 

  1: 0-Cloud                        2: Algeria                    
  3: Argentina (La Plata)           4: Australia (Canberra)       
  5: Australia (Melbourne)          6: Austria                    
  7: Belgium (Antwerp)              8: Belgium (Ghent)            
-------------------------------------------------------------         
 87: USA (MI 1)                    88: USA (MI 2)                 
 89: USA (MO)                      90: USA (NC)                   
 91: USA (OH 1)                    92: USA (OH 2)                 
 93: USA (OR)                      94: USA (PA 1)                 
 95: USA (PA 2)                    96: USA (TN)                   
 97: USA (TX)                      98: USA (WA)                   
 99: Venezuela                    100: Vietnam                    


Selection: 56
>

Answer 2

我意识到这已经差不多2年了，但我找不到答案，所以在这里添加了我的解决方案。

我遇到了同样的问题。无法从https下载，但可以从Mac版Sierra 10.12.6上使用R版本3.4.1和libcurl 7.55.1下载支持https。对我来说问题是我没有https的证书。我从https://raw.githubusercontent.com/bagder/ca-bundle/master/ca-bundle.crt下载了文件，并将环境变量CURL_CA_BUNDLE设置为ca-bundle.crt的完整路径，这很有效。

无法从Linux Mint 17.1中的R 3.2.2下载软件包

2 个答案: