Unmarshalling Error for my XML for TargetingIdeaService

[Daniel Kehoe]

I'm trying to use TargetingIdeaService.

I've assembled XML myself because the adwords4r Ruby client library
requires the soap4r gem which doesn't support Ruby 1.9 (and soap4r has
a reputation in the Ruby community as slow!). I've found the Ruby
Savon gem which performs well and is well-documented. However...

I haven't found any up-to-date and clear examples of correctly-
formatted SOAP requests. I've used the SoapUI app to examine the wsdl
and I'm trying to assemble the correct XML.

This is what I've got so far but it is failing with the error:

Unmarshalling Error: Unable to create an instance of
com.google.ads.api.services.targetingideas.v201008.jaxbgen.SearchParameter

Could you please point out what I've done wrong?
My namespace use is correct?
I've got the correct order of elements?

<soapenv:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-
instance" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";
xmlns:v20="https://adwords.google.com/api/adwords/o/v201008";
xmlns:v201="https://adwords.google.com/api/adwords/cm/v201008";>
  <soapenv:Header>
    <v20:RequestHeader>
      <v201:authToken>xxxxx</v201:authToken>
      <v201:developerToken>xxxxx</v201:developerToken>
      <v201:userAgent>xxxxx</v201:userAgent>
    </v20:RequestHeader>
  </soapenv:Header>
  <soapenv:Body>
    <v20:get>
      <v20:selector>
        <v20:searchParameters
xsi:type="RelatedToKeywordSearchParameter">
          <keywords xsi:type="Keyword">
             <text xsi:type="string">adwords api examples</text>
             <matchType xsi:type="string">EXACT</matchType>
           </keywords>
        </v20:searchParameters>
        <v20:searchParameters
xsi:type="KeywordMatchTypeSearchParameter">
           <keywordMatchTypes>EXACT</keywordMatchTypes>
        </v20:searchParameters>
        <v20:searchParameters xsi:type="CountryTargetSearchParameter">
            <countryTargets>
              <countryCode>US</countryCode>
            </countryTargets>
        </v20:searchParameters>
        <v20:searchParameters
xsi:type="LanguageTargetSearchParameter">
          <languageTargets>
            <languageCode>en</languageCode>
          </languageTargets>
        </v20:searchParameters>
        <v20:ideaType>KEYWORD</v20:ideaType>
        <v20:requestType>IDEAS</v20:requestType>
        <v20:requestedAttributeTypes>KEYWORD</
v20:requestedAttributeTypes>
 
<v20:requestedAttributeTypes>AVERAGE_TARGETED_MONTHLY_SEARCHES</
v20:requestedAttributeTypes>
        <v20:requestedAttributeTypes>TARGETED_MONTHLY_SEARCHES</
v20:requestedAttributeTypes>
        <v20:paging>
          <v201:startIndex>0</v201:startIndex>
          <v201:numberResults>10</v201:numberResults>
        </v20:paging>
      </v20:selector>
    </v20:get>
  </soapenv:Body>
</soapenv:Envelope>

Thanks for assistance!

-- Daniel

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