[R] Unable to connect to 'cran.r-project.org' on port 80.

Cedrick W. Johnson cedrick at cedrickjohnson.com
Tue Apr 27 03:18:40 CEST 2010

There was a notice earlier today about a power outage affecting the main 
CRAN site..

For installing packages, try:
install.packages("packagename", repos="http://cran.wustl.edu")

or to perform an upgrade:

until the main CRAN site has been resolved. You can also google for 
alternate CRAN sites to use in the repos= area as well. Bioconductor I 
believe is on it's own site, not affected by the outage.


On 4/26/2010 9:14 PM, Caitlin wrote:
> Hi.
> I recently upgraded my R installation to 2.11.0 on Windows XP (SP3) without
> changing any firewall settings. When I attempted to update my package list,
> the 'Select a mirror' took much longer than it normally did, and after I
> finally selected the site, I saw:
> --- Please select a CRAN mirror for use in this session ---
> Warning message:
> In open.connection(con, "r") :
> unable to connect to 'cran.r-project.org' on port 80.
> The only action I performed in a prior session was to download and install
> several packages including Bioconductor.
> Any idea what the problem might be?
> Thanks,
> Caitlin
> 	[[alternative HTML version deleted]]
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