This gist shows when a Resources Not Found Exception is thrown especially when implementing CountDownTimer. I've explained about the exception in detail in my blog post http://gsrikar.blogspot.com/2017/01/resources-not-found-exception-in-android.html

Resources Not Found Exception Example

new CountDownTimer(10000, 1000) {
            @Override
            public void onTick(long millisUntilFinished) {
                Log.i(TAG, "Time in Milli until finished: " + millisUntilFinished);
                int remainingTimeInSec = (int) (millisUntilFinished / 1000);
                countDownTimeTextView.setText(remainingTimeInSec);
            }

            @Override
            public void onFinish() {
                Log.i(TAG, "On Finish called");
                countDownTimeTextView.setText(0);
            }
        }.start();