BaseActivity上的DataBinding

Question

首先，我尝试了Stackoverflow上提出的所有解决方案，但对我不起作用。因此，在使用DataBinding而不是Base Activity时遇到问题。我正在

  

尝试从字段中读取   “com.mobilemovement.bestcoin.databinding.ToolbarLayoutBinding   com.mobilemovement.bestcoin.databinding.ActivityHolderBinding.ahToolbarLayout”   在空对象引用上

BaseActivity.java

public abstract class BaseActivity<B extends ViewDataBinding> extends 
AppCompatActivity {

protected B dataBinding;
private ActionBarDrawerToggle mDrawerToggle;
private DrawerLayout mDrawerLayout;
private NavigationView mNavigationView;
private Toolbar mToolbar;

protected void bindView(Toolbar toolbar, DrawerLayout drawerLayout, NavigationView navigationView) {
    dataBinding = DataBindingUtil.setContentView(this, setLayoutResourceIdentifier());

    mToolbar = toolbar;
    setSupportActionBar(toolbar);

    mNavigationView = navigationView;
    setupDrawerContent();

    mDrawerToggle = setupDrawerToggle();

    mDrawerLayout = drawerLayout;
    mDrawerLayout.addDrawerListener(mDrawerToggle);
}

MainActivity.java

public class HolderActivity extends BaseActivity<ActivityHolderBinding> {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    bindView(dataBinding.ahToolbarLayout.toolbar,
            dataBinding.dlHolderActivity,
            dataBinding.nvItemHolder);
}

我可以使用没有BaseActivity的DataBinding，所以我的意思是我的布局和ID是正确的，但是当我切换到BaseActivity时，我收到了错误。