How to disable/(Hide) autogenerated back arrow in fragment?

Following is my code snippet, which I am trying.
Error is populated like this way:

Tried to work like this but it couldnot work::
((AppCompatActivity)getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        ((AppCompatActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(false);

        return inflater.inflate(R.layout.fragment_itinerary_list, container, false);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
    
    }