content is not allowed in prolog when transferring property

My first step response is as the following:

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"/>
<soap:Body>
<svc:determineCustomerRatesResponse xmlns:acct="http://bac.com/baclws/ngen2/account" xmlns:cmd="http://bac.com/baclws/ngen2/command" xmlns:cmn="http://bac.com/baclws/ngen2/common" xmlns:comm="http://bac.com/baclws/ngen2/communication" xmlns:doc="http://bac.com/baclws/ngen2/document" xmlns:event="http://bac.com/baclws/ngen2/event" xmlns:icase="http://bac.com/baclws/ngen2/icase" xmlns:ienum="http://bac.com/baclws/ngen2/ienum" xmlns:ns13="http://bac.com/wsdl/ngen2/PricingLocationReportingV001" xmlns:prod="http://bac.com/baclws/ngen2/product" xmlns:ref="http://bac.com/baclws/ngen2/reference" xmlns:role="http://bac.com/baclws/ngen2/role" xmlns:svc="http://bac.com/wsdl/ngen2/DepositCustomerPricingReportingV001" xmlns:trn="http://bac.com/baclws/ngen2/transaction">
<svc:rates>
<cmn:lineOfBusiness>
<cmn:code>CON</cmn:code>
<cmn:name>Consumer</cmn:name>
</cmn:lineOfBusiness>
<cmn:location>
<cmn:state>
<cmn:code>MO</cmn:code>
</cmn:state>
<cmn:FIPSStateCode>29</cmn:FIPSStateCode>
<cmn:FIPSCountyCode>005</cmn:FIPSCountyCode>
</cmn:location>
<cmn:minimumTermDuration>P120M</cmn:minimumTermDuration>
<cmn:rates>
<cmn:identifier>51c1162d-857e-49b1-9a09-6053459e6af9</cmn:identifier>

I transfer identifier 51c1162d-857e-49b1-9a09-6053459e6af9 to the second step

The second step input is as the following:

  <cmn:identifier>${#TestCase#identifier</cmn:identifier>

Error log and test suite xml file is attached