app-vue里面cover-image和cover-view无显示？

代码：

    <view class="content">  

        <cover-image src="https://ask.dcloud.net.cn/account/identicon/ead618efc2c5b77129ba92f976fccd7c.png"></cover-image>  
        <cover-view>  
            <text>agn</text>  
        </cover-view>  
    </view>  
</template>```   
H5显示正常，安卓APP一片空白