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Warning message: In open.connection(con, "r") : unable to connect to 'cran.r-project.org' on port 80.

asked 2014-12-23 04:43:27 -0500

Angelica gravatar image

R version 3.1.2, got this error when I install a package. How can I fix this? Warning message: In open.connection(con, "r") : unable to connect to 'cran.r-project.org' on port 80.

I want to install a 'psych' package.

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Probably we need more information about your exact setup. Is there a firewall or something, are you in a Sage notebook server or the Sage math cloud, or a local installation? I have no trouble installing this optional R package within Sage.

kcrisman gravatar imagekcrisman ( 2014-12-23 20:43:22 -0500 )edit

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answered 2015-03-27 08:36:14 -0500

loffenauer gravatar image

Hi- you are trying to install a package, which will download data from the Internet. Not all sites are available through sagemath cloud. If you pick a mirror that is accessible this should work so try

install.packages("psych", repos="http://cran.cs.wwu.edu/")

Make sure that you say "y" (yes) to install the package locally.

Installing package into ‘/projects/<some_id>/R/x86_64-unknown-linux-gnu-library/3.1’ (as ‘lib’ is unspecified)

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Asked: 2014-12-23 04:43:27 -0500

Seen: 10,950 times

Last updated: Mar 27 '15