java.lang.RuntimeException: An error occurred while executing doInBackground()
	at android.os.AsyncTask$4.done(AsyncTask.java:399)
	at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:383)
	at java.util.concurrent.FutureTask.setException(FutureTask.java:252)
	at java.util.concurrent.FutureTask.run(FutureTask.java:271)
	at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:919)
Caused by: android.view.ViewRootImpl$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
	at android.view.ViewRootImpl.checkThread(ViewRootImpl.java:8797)
	at android.view.ViewRootImpl.requestLayout(ViewRootImpl.java:1574)
	at android.view.View.requestLayout(View.java:24735)
	at android.view.View.requestLayout(View.java:24735)
	at android.view.View.requestLayout(View.java:24735)
	at android.view.View.requestLayout(View.java:24735)
	at android.view.View.requestLayout(View.java:24735)
	at android.view.View.requestLayout(View.java:24735)
	at androidx.constraintlayout.widget.ConstraintLayout.requestLayout(ConstraintLayout.java:3172)
	at android.view.View.requestLayout(View.java:24735)
	at androidx.recyclerview.widget.RecyclerView.requestLayout(RecyclerView.java:4202)
	at androidx.recyclerview.widget.RecyclerView$RecyclerViewDataObserver.onChanged(RecyclerView.java:5286)
	at androidx.recyclerview.widget.RecyclerView$AdapterDataObservable.notifyChanged(RecyclerView.java:11997)
	at androidx.recyclerview.widget.RecyclerView$Adapter.notifyDataSetChanged(RecyclerView.java:7070)
	at com.entitcs.office_attendance.FaceRecognitionRelated.helpers.MLVideoHelperActivity.updateAdapter(MLVideoHelperActivity.java:499)
	at com.entitcs.office_attendance.FaceRecognitionRelated.object.FaceRecognitionActivity.trainImageForSelfi(FaceRecognitionActivity.java:243)
	at com.entitcs.office_attendance.FaceRecognitionRelated.object.FaceRecognitionActivity.access$000(FaceRecognitionActivity.java:92)
	at com.entitcs.office_attendance.FaceRecognitionRelated.object.FaceRecognitionActivity$3.doInBackground(FaceRecognitionActivity.java:569)
	at com.entitcs.office_attendance.FaceRecognitionRelated.object.FaceRecognitionActivity$3.doInBackground(FaceRecognitionActivity.java:559)
	at android.os.AsyncTask$3.call(AsyncTask.java:378)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	... 4 more