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I'm using the neurobase package in R. In this package i need to download other package from github then, i'll use the devtools and get the error.

> devtools::install_github("muschellij2/ms.lesion")
Installation failed: error setting certificate verify locations:
  CAfile: microsoft-r-cacert.pem 
  CApath: none

I'm using Ubuntu 16.04, microsoft R-3.4.3, RCurl-1.95.4.9

Already did reinstall the libcurl4-openssl-dev, libssl-dev using this code

sudo apt-get install libcurl4-openssl-dev
sudo apt-get install libssl-dev
Kang Dong Ju
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  • see https://github.com/jeroen/curl/issues/116 and https://github.com/r-lib/devtools/issues/1610. in short, you need to set environment variables `Sys.getenv(http_proxy=“mycompanyproxy:8080”); Sys.getenv(https_proxy=“mycompanyproxy:8080”)` – chinsoon12 Apr 17 '18 at 01:59
  • related to https://stackoverflow.com/questions/19693518/error-setting-certificate-verify-locations-install-github and https://stackoverflow.com/questions/16467725/r-devtools-github-install-fails/16547624#16547624 – chinsoon12 Apr 17 '18 at 02:13
  • Hmm.. i think about it'll need to proxy setting could you give me a help? `> ie_proxy_info()` `NULL` – Kang Dong Ju Apr 17 '18 at 02:51
  • You can’t use that function on Linux. It is only for Windows. You will need your IT to give you the proxy or get it from your browser – chinsoon12 Apr 17 '18 at 04:20

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