loadrunner 11.0版本我运行web server的报错

Action()
{
web_service_call( "StepName=getCdr_101",
"SOAPMethod=ISvrService|ISvrPort|getCdr",
"ResponseParam=response",
"Service=ISvrService",
"ExpectedResponse=SoapResult",
"Snapshot=t1374197813.inf",
BEGIN_ARGUMENTS,
"question=160005129857^162011091647^20130201000000^1800^1^20130231000000^0516^1",
END_ARGUMENTS,
BEGIN_RESULT,
"return=Param_return",
END_RESULT,
LAST);
return 0;
}
InvokeMethod failure: 外部组件发生异常。.
Action.c(5): Error: ExtractResultArg failure: 外部组件发生异常。.
Action.c(5): Error: Web service call "getCdr_101" execution failed