C:/Ruby21-x64/lib/ruby/2.1.0/net/http.rb:879:in `initialize': getaddrinfo: The s
pecified class was not found.  (SocketError)
        from C:/Ruby21-x64/lib/ruby/2.1.0/net/http.rb:879:in `open'
        from C:/Ruby21-x64/lib/ruby/2.1.0/net/http.rb:879:in `block in connect'
        from C:/Ruby21-x64/lib/ruby/2.1.0/timeout.rb:76:in `timeout'
        from C:/Ruby21-x64/lib/ruby/2.1.0/net/http.rb:878:in `connect'
        from C:/Ruby21-x64/lib/ruby/2.1.0/net/http.rb:863:in `do_start'
        from C:/Ruby21-x64/lib/ruby/2.1.0/net/http.rb:858:in `start'
        from C:/Ruby21-x64/lib/ruby/2.1.0/net/http.rb:583:in `start'
        from check.rb:20:in `block in read_proxies'
        from check.rb:16:in `each_line'
        from check.rb:16:in `read_proxies'
        from check.rb:27:in `<main>'