how can i fix null pointer exception

public class DailyForecastActivity extends ListActivity {

    private Day[] mDays;
    private Forecast mForecast;
    @InjectView(R.id.locationLabel) TextView mLocationLabel;
    private String mLoc;



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

        Intent intent = getIntent();
        mLoc = intent.getStringExtra("location");

        String location = mLoc;
        mLocationLabel.setText(location);

        Parcelable[] parcelables = intent.getParcelableArrayExtra(MainActivity.DAILY_FORECAST);
        mDays = Arrays.copyOf(parcelables, parcelables.length, Day[].class );

        DayAdapter adapter = new DayAdapter(this, mDays);
        setListAdapter(adapter);

}