Hi,

On 2 Aug., 12:04, Yin Silver <yin... / orange-ftgroup.com> wrote:
> But when I tried to do: gem install rails --include-dependencies, i have
> got a error message:
>
>     ERROR: While executing gem...(Gem: RemoteFetcher::FetchError)
>                   getaddrinfo: Temporary failure in name
> resolutio(SocketError)

This means that gem can't resolve the name of a remote server, i. e.
http://gems.rubyforge.org

Can you connect to this server using a browser or a command line tool
like curl?

Lutz