错误设置证书验证位置，install_github [英] error setting certificate verify locations, install_github

问题描述

我试图从github安装一个包，但是当我
使用 install_github 时，我总是收到错误。

 
 library（devtools）
 install_github（repo =swirl，username =ncarchedi）
安装github repo（s）swirl / master from ncarchedi 
从https://github.com/ncarchedi/swirl/archive/master.zip下载swirl.zip 
函数错误（type，msg，asError = TRUE）：
错误设置证书验证位置：
 CAfile：/Library/Frameworks/R.framework/Versions/3.0/Resources/library/RCurl/CurlSSL/cacert.pem 
 CApath：none 
 

我试图安装几个不同的包
（包括ggmap的更新版本），而且我总是得到相同的错误。它
必须与RCurl有关，但我不明白
是什么问题，或者如何解决它。我有devtools（版本1.3）和RCurl
（版本1.95-4.1）。我在Mac上运行R版本3.0.1（Good Sport）。

$ b

从 sessionInfo（）

 
 sessionInfo（）
 R版本3.0.1（2013-05-16）
平台：x86_64-apple -darwin10.8.0（64位）
 
区域设置：
 [1] en_US.UTF-8 / zh_CN.UTF-8 / zh_CN.UTF-8 / C / zh_CN.UTF- 8 / en_US.UTF-8 
 
附加软件包：
 [1]统计图形grDevices utils数据集方法库
 
其他附加软件包：
 [ 1] RCurl_1.95-4.1 bitops_1.0-5 devtools_1.3 
 
通过命名空间加载（并未附加）：
 [1] digest_0.6.3 evaluate_0.4.3 httr_0.2 memoise_0 .1 parallel_3.0.1 stringr_0.6.2 
 [7] tools_3.0.1 whisker_0.3-2 
 

解决方案这个答案（ R - devtools Github安装失败）到一个类似的问题建议尝试重新安装RCurl - 哪（我猜在这里）可能会修复你的机器上卷曲的路径，无论如何，尝试一下。

I am trying to install a package from github, but I keep getting an error when I use install_github.

library(devtools)
install_github(repo="swirl", username="ncarchedi")
Installing github repo(s) swirl/master from ncarchedi
Downloading swirl.zip from https://github.com/ncarchedi/swirl/archive/master.zip
Error in function (type, msg, asError = TRUE)  : 
  error setting certificate verify locations:
  CAfile: /Library/Frameworks/R.framework/Versions/3.0/Resources/library/RCurl/CurlSSL/cacert.pem
  CApath: none

I have tried to install several different packages (including an updated version of ggmap), and I always get the same error. It must have something to do with RCurl, but I don't understand what the problem is, or how to fix it. I have devtools (Version 1.3) and RCurl (Version 1.95-4.1). I am running R version 3.0.1 ("Good Sport") on mac.

Results from sessionInfo()

sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-apple-darwin10.8.0 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] RCurl_1.95-4.1 bitops_1.0-5   devtools_1.3  

loaded via a namespace (and not attached):
[1] digest_0.6.3   evaluate_0.4.3 httr_0.2       memoise_0.1    parallel_3.0.1  stringr_0.6.2 
[7] tools_3.0.1    whisker_0.3-2

解决方案

This SO answer (R - devtools Github install fails) to a similar question suggests trying to reinstall RCurl - which (I'm guessing here) may fix the path to curl on your machine, in any case, try that.

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