ButterKnife使用异常

异常信息

Error:(23, 81) 错误: @Bind fields must extend from View or be an interface. (...DemoActivity.mRecycler)

代码

    @Bind(R.id....toolbar)Toolbar mToolbar;
    @Bind(R.id...._recycler)RecyclerView.Recycler mRecycler;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout....);
        ButterKnife.bind(this);
    }

翻了下源码，该是这里的问题

if (!isSubtypeOfType(elementType, VIEW_TYPE) && !isInterface(elementType)) {

  error(element, "@%s fields must extend from View or be an interface. (%s.%s)",
      Bind.class.getSimpleName(), enclosingElement.getQualifiedName(), element.getSimpleName());
  hasError = true;
}

难道拿RecyclerView 不当View？困惑