am getting error as java.lang.ClassCastException:org.ksoap2.soapfaultor enter number is not avialable can u please find solution for this

package com.example.newweb;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;

import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.app.Activity;

public class MainActivity extends Activity 
{
    private static final String SOAP_ACTION = "http://tempuri.org/FindName";   
    private static final String OPERATION_NAME = "FindName";
    private static final String WSDL_TARGET_NAMESPACE = "http://tempuri.org/";
    private static final String SOAP_ADDRESS = "http://1675.vinna.in/android/Service.asmx";
    
    TextView tvData1;
    EditText edata;
    Button button;
    String studentNo;
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tvData1 = (TextView)findViewById(R.id.textView1);
        button=(Button)findViewById(R.id.button1);
        button.setOnClickListener(new OnClickListener() 
        {
            public void onClick(View v) 
            {
                SoapObject request = new SoapObject(WSDL_TARGET_NAMESPACE,OPERATION_NAME);
                PropertyInfo propertyInfo=new PropertyInfo();
                propertyInfo.type = PropertyInfo.STRING_CLASS;
                
                propertyInfo.name = "eid";
                edata =(EditText)findViewById(R.id.editText1);
                studentNo=edata.getText().toString();
                request.addProperty(propertyInfo, studentNo);
                SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
                envelope.dotNet = true;
                envelope.setOutputSoapObject(request);
                HttpTransportSE httpTransport = new HttpTransportSE(SOAP_ADDRESS);
                try
                {                    
                    httpTransport.call(SOAP_ACTION, envelope);
                    String s=httpTransport.requestDump;
                    SoapObject response=(SoapObject)envelope.bodyIn;
                    
                    tvData1.setText(response.toString());
                }  
                catch (Exception exception)   
                {
                    tvData1.setText(exception.toString()+"Or enter number is not Available!");                    
                }
                tvData1 = (TextView)findViewById(R.id.textView1);
            }
        });
        //client = new DefaultHttpClient();            
        //new Read().execute("text");
    }
}