Android facebook LikeView

Question

我按照所有步骤设置了facebook sdk 即使在移动设备上运行应用程序

，我的问题是LikeView没有在xml中显示

<com.facebook.share.widget.LikeView
    android:text="Like Button"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAllCaps="false"
    android:background="@color/colorPrimary"
    android:textColor="#fff"
    android:paddingLeft="15dp"
    android:paddingRight="15dp"
    android:id="@+id/btnLike" />

我收到此错误

The following classes could not be instantiated:
-com.facebook.share.widget.LikeView