.Problem is that project was not made by me.I have added this project and checked that all the necessary library file exist or not.Required KSOP2 Jar file is already in libs folder.And as the logcat suggest it is related with soapobject. Searched a lot before asking this question but none of the solution worked for me.May be this time I have explained properly.Please ignore some English language related error.
07-02 11:41:42.369: E/AndroidRuntime(3633): FATAL EXCEPTION: main
07-02 11:41:42.369: E/AndroidRuntime(3633): java.lang.IllegalStateException: Could not execute method of the activity
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.view.View$1.onClick(View.java:2695)
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.view.View.performClick(View.java:3122)
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.view.View$PerformClick.run(View.java:11942)
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.os.Handler.handleCallback(Handler.java:587)
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.os.Handler.dispatchMessage(Handler.java:92)
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.os.Looper.loop(Looper.java:132)
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.app.ActivityThread.main(ActivityThread.java:4028)
07-02 11:41:42.369: E/AndroidRuntime(3633): at java.lang.reflect.Method.invokeNative(Native Method)
07-02 11:41:42.369: E/AndroidRuntime(3633): at java.lang.reflect.Method.invoke(Method.java:491)
07-02 11:41:42.369: E/AndroidRuntime(3633): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844)
07-02 11:41:42.369: E/AndroidRuntime(3633): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
07-02 11:41:42.369: E/AndroidRuntime(3633): at dalvik.system.NativeStart.main(Native Method)
07-02 11:41:42.369: E/AndroidRuntime(3633): Caused by: java.lang.reflect.InvocationTargetException
07-02 11:41:42.369: E/AndroidRuntime(3633): at java.lang.reflect.Method.invokeNative(Native Method)
07-02 11:41:42.369: E/AndroidRuntime(3633): at java.lang.reflect.Method.invoke(Method.java:491)
07-02 11:41:42.369: E/AndroidRuntime(3633): at android.view.View$1.onClick(View.java:2690)
07-02 11:41:42.369: E/AndroidRuntime(3633): ... 11 more
07-02 11:41:42.369: E/AndroidRuntime(3633): Caused by: java.lang.NoClassDefFoundError: org.ksoap2.serialization.SoapObject
07-02 11:41:42.369: E/AndroidRuntime(3633): at com.test.android.Dashboardlogin.validatelogin(Dashboardlogin.java:83)
07-02 11:41:42.369: E/AndroidRuntime(3633): at com.test.android.Dashboardlogin.onBtnClicked(Dashboardlogin.java:62)
07-02 11:41:42.369: E/AndroidRuntime(3633): ... 14 more