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: java.lang.StackOverflowError: stack size 1039KB
	at android.graphics.Bitmap.getConfig(Bitmap.java:1692)
	at android.graphics.Bitmap.checkHardware(Bitmap.java:446)
	at android.graphics.Bitmap.getPixel(Bitmap.java:1906)
	at com.google.android.gms.vision.face.FaceDetector.detect(Unknown Source:28)
	at com.entitcs.office_attendance.FaceRecognitionRelated.object.FaceRecognitionActivity.trainImageForSelfi(FaceRecognitionActivity.java:201)
	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:567)
	at com.entitcs.office_attendance.FaceRecognitionRelated.object.FaceRecognitionActivity$3.doInBackground(FaceRecognitionActivity.java:557)
	at android.os.AsyncTask$3.call(AsyncTask.java:378)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	... 4 more