title: Error consuming Web Service with Rails and Savon 2.0
body: <p>I´m trying to consume a test SOAP Web Service with Rails 4 and Savon 2.0.</p>
  
  <p>The code:</p>
  
  <pre><code>client = Savon.client(wsdl: "http://www.webservicex.net/periodictable.asmx?WSDL", 
                        log_level: :debug,
                        pretty_print_xml: true)
  message = {ElementName: 'Zinc'}
  response = client.call(:get_element_symbol, message)
  </code></pre>
  
  <p>The error in log:</p>
  
  <pre><code>Savon::UnknownOptionError (Unknown local option: :ElementName):
  </code></pre>