java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference at android.widget.Toast.(Toast.java:111) at android.widget.Toast.makeText(Toast.java:291) at com.entitcs.office_attendance.e.d1$q.f1(SourceFile) at com.entitcs.office_attendance.e.d1$q.onPostExecute(SourceFile) at android.os.AsyncTask.finish(AsyncTask.java:660) at android.os.AsyncTask.-wrap1(AsyncTask.java) at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:677) at android.os.Handler.dispatchMessage(Handler.java:110) at android.os.Looper.loop(Looper.java:203) at android.app.ActivityThread.main(ActivityThread.java:6328) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1076) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:937)