This question is best suited for e.g. stackoverflow.com or the R-help
mailing list.
What is the command you specify? What package are you trying to install?
Are you behind the firewall? In that case, have you tried this solution (
https://sites.google.com/site/swlazlowski/Home/hardware/using-r-behind-a-firewall
)?

Cheers,
Roman




On Sat, Feb 22, 2014 at 8:02 AM, Mahnaz Rabbaniha <rab.mahnaz@gmail.com>wrote:

> Dear all
>
> for installing of new packages i select the country but i have gotten the
> error message any times:
>
>
> Warning: unable to access index for repository
> http://mirrors.softliste.de/cran/bin/windows/contrib/3.0
> Warning: unable to access index for repository
> http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/3.0
> Error in install.packages(NULL, .libPaths()[1L], dependencies = NA, type =
> type) :
>   no packages were specified
> In addition: Warning message:
> In open.connection(con, "r") :
>   unable to connect to 'cran.r-project.org' on port 80.
>
>
> what is the main problem?how i dissolve?
>
>
> the widows of my computer is  XP with 32 bit
>
>
> best regards
>
> mahnaz
>
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>
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>



-- 
In God we trust, all others bring data.

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