Почему выводит ошибку из-за @Override?

public class MainActivity extends AppCompatActivity implements GetDataFromInternet.AsyncResponse {

    private RecyclerView tasksRecyclerView;
    private ToDoAdapter tasksAdapter;
    private FloatingActionButton fab;
    public float temp_r;

    private List<ToDoModel> taskList;
    private DatabaseHandler db;

    private static final int NOTIFY_ID = 101;

    private static final String TAG = "MainActivity";

    final String CHANNEL_ID = "Important_mail_channel";
    Button mBtnSimpleNotification;
    NotificationManagerCompat mNotificationManagerCompat;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        getSupportActionBar().hide();


        try {
            URL url = new URL("https://api.openweathermap.org/data/2.5/weather?q=Moscow&appid=bc3c769785e409da05b5fca6ab83f12b");
            new GetDataFromInternet(this).execute(url);
        } catch (MalformedURLException e) {
            e.printStackTrace();
        }


        createNotificationChannel();
        mBtnSimpleNotification = findViewById(R.id.btn_notification);
        mBtnSimpleNotification.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                createSimpleNotification("Simple Notification", temp_r, 1);

            }
        });
        mNotificationManagerCompat = NotificationManagerCompat.from(MainActivity.this);


        db = new DatabaseHandler(this);
        db.openDatabase();

        taskList = new ArrayList<>();


        tasksRecyclerView = findViewById(R.id.tasksrecycleView);
        tasksRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        tasksAdapter = new ToDoAdapter(db, this);
        tasksRecyclerView.setAdapter(tasksAdapter);

        fab = findViewById(R.id.fab);
        ItemTouchHelper itemTouchHelper = new ItemTouchHelper(new RecyclerItemTouchHelper(tasksAdapter));
        itemTouchHelper.attachToRecyclerView(tasksRecyclerView);

        taskList = db.getAllTasks();
        Collections.reverse(taskList);
        tasksAdapter.setTasks(taskList);

        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                AddNewTask.newInstance().show(getSupportFragmentManager(), AddNewTask.TAG);
            }
        });
    }

@Override - и тут он ругается, что нельзя из-за супер класса
Но я не знаю, как исправить