axis请求soap报文报错

axis传报文报错：
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Client
faultSubcode:
faultString: Unmarshalling Error: cvc-complex-type.3.2.2: Attribute 'soapenv:encodingStyle' is not allowed to appear in element 'ns1:diagnosis'.
faultActor:
faultNode:
请问这是什么原因造成的。