Question

I am trying to install the nokogiri,selenium-webdriver,mechanize but getting error as below:

ruby 1.9.3p374 (2013-01-15) [i386-mingw32]

C:\Documents and Settings\pp>gem install nokogiri
ERROR:  Could not find a valid gem 'nokogiri' (>= 0) in any repository
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    SocketError: getaddrinfo: No such host is known.  (http://rubygems.org/lates
t_specs.4.8.gz)

C:\Documents and Settings\pp>gem install nokogiri
ERROR:  Could not find a valid gem 'nokogiri' (>= 0) in any repository
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    SocketError: getaddrinfo: No such host is known.  (http://rubygems.org/lates
t_specs.4.8.gz)

C:\Documents and Settings\pp>gem install selenium-webdriver
ERROR:  Could not find a valid gem 'selenium-webdriver' (>= 0) in any repository

ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    SocketError: getaddrinfo: No such host is known.  (http://rubygems.org/lates
t_specs.4.8.gz)

C:\Documents and Settings\pp>gem install selenium
ERROR:  Could not find a valid gem 'selenium' (>= 0) in any repository
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    SocketError: getaddrinfo: No such host is known.  (http://rubygems.org/lates
t_specs.4.8.gz)

Could you help me to get it done?

Answer 1

Your error seems like a proxy issue,
try the following command

gem install --http-proxy <your proxy host:port> <your gem name>

eg.

gem install --http-proxy http://localhost:8888 selenium-webdriver

You can also do

SET HTTP_PROXY=http://%USER%:%PASSWORD%@%SERVER%:%PORT%

then execute your gem install