Android Question hello by giving me this error?

Installing file.
PackageAdded: package:com.generic.sample
** Activity (main) Create, isFirst = true **
main_updatestatus (java line: 679)
java.lang.RuntimeException: Object should first be initialized (Notification).
    at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:46)
    at anywheresoftware.b4a.objects.NotificationWrapper.SetInfo2(NotificationWrapper.java:140)
    at anywheresoftware.b4a.objects.NotificationWrapper.SetInfo(NotificationWrapper.java:121)
    at com.generic.sample.main._updatestatus(main.java:679)
    at com.generic.sample.main._activity_create(main.java:319)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:169)
    at com.generic.sample.main.afterFirstLayout(main.java:89)
    at com.generic.sample.main.access$100(main.java:16)
    at com.generic.sample.main$WaitForLayout.run(main.java:74)
    at android.os.Handler.handleCallback(Handler.java:605)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:4699)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:511)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.RuntimeException: Object should first be initialized (Notification).
** Activity (main) Resume **
** Service (service1) Create **
** Service (service1) Start **
startService: class anywheresoftware.b4a.samples.httputils2.httputils2service
** Service (httputils2service) Create **
** Service (httputils2service) Start **
"}]
hola244
hola