android通过ksoap2连接webservice报错

SoapFault - faultcode: 'Receiver' faultstring: 'Layout does not exist, LayoutID = 0' faultactor: 'null' detail: null
at org.ksoap2.serialization.SoapSerializationEnvelope.parseBody(SoapSerializationEnvelope.java:137)
哪位大神能帮忙解答一下，小弟在此万分感激！！！