循环后el-popover点击无反应不弹出

<el-popover trigger="click" placement="left" visible-arrow="false" :ref="onetask.task_id">
	<el-button slot="reference" type="text" size="small">
    	<i class="el-icon-delete"></i>
    </el-button>
    <p>删除后无法恢复，确认删除吗？</p>
    <div style="text-align: right; margin: 0">
    	<el-button size="mini" type="text" @click="popoverClose(onetask.task_id)">取消</el-button>
        <el-button type="primary" size="mini" @click="sendDel">确定</el-button>
     </div>
</el-popover>

popoverClose(id) {
    console.log(this.$refs)
    this.$refs[`${id}`][0].doClose()
},