1. 在使用element plus表格操作按钮，使用v-if，作用元素，
出现如下报错：ElementPlusError: [ElOnlyChild] no valid child node found
代码如下：
<el-table-column label="操作" align="center" fixed="right" width="150" class-name="small-padding fixed-width" v-hasPermi="['project:manage:edit', 'project:manage:undertake', 'project:manage:query', 'project:manage:remove']">
<template #default="scope">
<el-tooltip content="删除" placement="top">
<el-button link type="danger" icon="delete" v-if="scope.row.status === '0' && auth.hasPermi('project:manage:remove')" @click="handleDelete(scope.row)"></el-button>
</el-tooltip>
</template>
</el-table-column>
2. 解决方法：
将v-if作用2在el-tooltip上即可，而不是作用在按钮上。
<el-table-column label="操作" align="center" fixed="right" width="150" class-name="small-padding fixed-width" v-hasPermi="['project:manage:edit', 'project:manage:undertake', 'project:manage:query', 'project:manage:remove']">
<template #default="scope">
<el-tooltip content="删除" placement="top" v-if="scope.row.status === '0' && auth.hasPermi('project:manage:remove')">
<el-button link type="danger" icon="delete" v-if="scope.row.status === '0' && auth.hasPermi('project:manage:remove')" @click="handleDelete(scope.row)"></el-button>
</el-tooltip>
</template>
</el-table-column>
标签：node,ElOnlyChild,no,ElementPlusError,valid,child From： https://www.cnblogs.com/shyhuahua/p/18332452