Exception: System.InvalidOperationException: Client found response content type of '', but expected 'text/xml'.
The request failed with the error message:
--
Content-Type : text/xml #I have added this line in the perl web service like print "\nContent-type : text/xml\n\n" to check what exactly it returns.

####################################################################

HTTP/1.1 200 OK
Content-Length: 1468
Content-Type: text/xml; charset=utf-8
SOAPServer: SOAP::Lite/Perl/1.17

<?xml version="1.0" encoding="UTF-8"?><soap:Envelope soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" 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.o
rg/2001/XMLSchema-instance"><soap:Body><MRWebServices__searchResponse xmlns="MRWebServices"><return xsi:type="xsd:string"><data>
 <array>
  <item key="0">
   <map>
    <item key="mrid">1</item>
    <item key="mrtitle">Test ticket for edit issue.</item>
   </map>
  </item>
  <item key="1">
   <map>
    <item key="mrid">2</item>
    <item key="mrtitle">Test ticket for edit issue2.</item>
   </map>
  </item>
  <item key="2">
   <map>
    <item key="mrid">3</item>
    <item key="mrtitle">Test ticket for edit issue3.</item>
   </map>
  </item>
  <item key="3">
   <map>
    <item key="mrid">4</item>
    <item key="mrtitle">Test ticket for edit issue4.</item>
   </map>
  </item>
  <item key="4">
   <map>
    <item key="mrid">5</item>
    <item key="mrtitle">Test ticket for edit issue5.</item>
   </map>
  </item>
 </array>
</data>
</return></MRWebServices__searchResponse></soap:Body></soap:Envelope>
--.
   at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolea
n asyncCall)
   at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
   at Search.MRWebServices__search(String usr, String pw, String extraInfo, String query)
   at main.Main()