Good afternoon, I'm trying to install a package with the "install.packages" command in RGUI, and get the following error message:
> install.packages ("tidyverse") Warning: unable to access index for repository https://mran.microsoft.com/snapshot/2017-05-01/src/contrib: cannot open URL '' Warning: unable to access index for repository https://mran.microsoft.com/snapshot/2017-05-01/bin/windows/contrib/3.3: cannot open URL ' https://mran.microsoft.com/snapshot/2017-05-01/bin/windows/contrib/3.3/PACKAGES ' Warning message: package ‘tidyverse’ is not available (for R version 3.3.3) Is there any documentation available that might document all the destination IP addresses that are involved when the "install.packages" command is ran? Our R server is in a part of the state network that has limited access to the internet, so I need to have outbound openings made in the firewall that will let the install.packages command access what it needs to access . Earlier I have coordinated with the firewall team to open ports 80 and 443 outbound from our R server to the 3 IP addresses that correspond to mran.microsoft.com, cran.microsoft.com, and www.stats.ox.ac.uk. I looked up these 3 IP addresses at network-tools.com. I think there might be additional IP addresses involved, because after these openings were made, I'm still getting the error message above. Thanks, -- Tully Holmes Business Applications Analyst State of Wyoming Wyoming Community College Commission 2300 Capitol Ave., 5th Floor, Suite B Cheyenne, WY 82002 307-777-6832 -- E-Mail to and from me, in connection with the transaction of public business, is subject to the Wyoming Public Records Act and may be disclosed to third parties. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.