oracle.j2ee.ws.client.jaxws.JRFSOAPFaultException: Client received SOAP Fault from server

Hello Experts,

I am trying to call submitTaskCSVImport operation of SetupDataExportImportService webservice. I am passing parameters correctly but I am getting following error and invoke operation fails.

<fault>

-<bpelFault>

<faultType>

0

</faultType>

-<remoteFault xmlns="http://schemas.oracle.com/bpel/extension">

-<part name="summary">

<summary>

Unknown method

</summary>

</part>

-<part name="code">

<code>

{http://schemas.xmlsoap.org/soap/envelope/}Client

</code>

</part>

-<part name="detail">

<detail>

oracle.j2ee.ws.client.jaxws.JRFSOAPFaultException: Client received SOAP Fault from server : Unknown method

</detail>

</part>

</remoteFault>

</bpelFault>

</fault>