ruby初心者なのですがsoap通信のプログラムを作っていて
エラーが出ていて調べたのですが原因がよくわかりません

wsdlは下記を使用しています
http://h-invitational.jp/hinv/hws/varysysdb/soap_search_rs_number.php?wsdl

そして下記のコマンドを実行しました
[root@localhost www]# wsdl2ruby --wsdl 'http://h-invitational.jp/hinv/hws/varysysdb/soap_search_rs_number.php?wsdl' --type client
[root@localhost www]# ruby search_rs_number_execServiceClient.rb
/usr/lib/ruby/gems/1.8/gems/soap4r-1.5.8/lib/soap/streamHandler.rb:268:in `send_post': 404: Not Found (SOAP::HTTPStreamError)
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.8/lib/soap/streamHandler.rb:172:in `send'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.8/lib/soap/rpc/proxy.rb:179:in `route'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.8/lib/soap/rpc/proxy.rb:143:in `call'
from /usr/lib/ruby/gems/1.8/gems/soap4r-1.5.8/lib/soap/rpc/driver.rb:181:in `call'
from (eval):6:in `search_rs_number_exec'
from search_rs_number_execServiceClient.rb:27