Why is it crashing in a simple list view (ListView)?

Question

Android

Good evening, for some reason I crash in the usual filling of the list. I did everything according to the book, it still does not work. The environment itself does not give errors, but crashes when launched in the emulator.

public class QuizMenuActivity extends Activity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.menu);
    ListView menuList = (ListView) findViewById(R.id.listView12);
    String[] items = {"Маша"};
    
    ArrayAdapter<String> adapt = new ArrayAdapter<String>(this,R.layout.menu_item, items);
    menuList.setAdapter(adapt);
  }

}

Answer 1

What eksepshn issues at least specify. And are you sure menuList exists?