黄油刀代码不起作用

Question

由于单击AlUsers活动应用程序已关闭，因此应用程序ID无法正常运行。

 ( public class AlUsersActivity extends AppCompatActivity {

    @BindView(R.id.listView)
    ListView listView;
    ArrayAdapter<String> adapter;
    UsersAdapter usersAdapter;

    ArrayList<User> users;
    ArrayList<String> users1;

    ContentResolver resolver;



    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_al_users);
        ButterKnife.bind(this); //  logcat shows error here

        users = new ArrayList<>();
        users1 = new ArrayList<>();

        resolver = getContentResolver();



} )