11-23 16:19:30.085: SoapFault - faultcode: 'S:Client' faultstring: 'Couldn't create SOAP message due to exception: Unable to create StAX reader or writer' faultactor: 'null' detail: null 11-23 16:19:30.085: at org.ksoap2.serialization.SoapSerializationEnvelope.parseBody(SoapSerializationEnvelope.java:121) 11-23 16:19:30.085: at org.ksoap2.SoapEnvelope.parse(SoapEnvelope.java:137) 11-23 16:19:30.085: at org.ksoap2.transport.Transport.parseResponse(Transport.java:63) 11-23 16:19:30.085: at org.ksoap2.transport.HttpTransportSE.call(HttpTransportSE.java:104) 11-23 16:19:30.085: at com.mobilebox.webservice.CommonWSClient.callWS(CommonWSClient.java:247) 11-23 16:19:30.085: at com.mobilebox.webservice.CommonWSClient.access$1(CommonWSClient.java:217) 11-23 16:19:30.085: at com.mobilebox.webservice.CommonWSClient$WSHandle.run(CommonWSClient.java:201) 11-23 16:19:30.085: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088) 11-23 16:19:30.085: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581) 11-23 16:19:30.085: at java.lang.Thread.run(Thread.java:1019) My Android application use Soap webservice client to call remote method. Sometimes, it will return the excepion as above. When I call it with SoapUI, it never occours.