错误：ERROR Cannot read properties of null (reading ‘type‘)

错误：ERROR Cannot read properties of null (reading ‘type‘)"/>

错误：ERROR Cannot read properties of null (reading ‘type‘)

ERROR
Cannot read properties of null (reading ‘type’)
TypeError: Cannot read properties of null (reading ‘type’)

<template><el-card><el-row :gutter="20" class="header"><el-col :span="7"><el-input placeholder="请输入商品大类名称..." v-model="queryForm.query" clearable></el-input></el-col><el-button type="primary" :icon="Search" @click="initBigTypeList">搜索</el-button><el-button type="primary" :icon="DocumentAdd" @click="handleDialogValue()">添加商品大类</el-button></el-row><el-table :data="tableData" stripe style="width: 100%"><el-table-column prop="id" label="#ID" width="80" /><el-table-column prop="name" label="商品大类名称" width="200" /><el-table-column prop="image" label="商品大类图片" width="200"><template v-slot="scope"><img :src="getServerUrl()+'/image/bigType/'+scope.row.image" width="80" height="80"/></template></el-table-column><el-table-column prop="remark" label="商品大类描述"/><el-table-column prop="action" label="操作" width="300" fixed="right"><template v-slot="scope"><el-button type="success" @click="handleImageDialogValue(scope.row)">更换图片</el-button><el-button type="prima