element select multiple 校验 必选

elementUI中下拉多选框校验问题

<el-form-item label="随访员 ：" prop="flupers">
    <el-select 
        v-model="flupers" 
        multiple 
        placeholder="请选择">
            <el-option
              v-for="item in flupersArr"
              :key="item.Id"
              :label="item.RealName"
              :value="item.Id">
            </el-option>
        </el-select>
</el-form-item>

rules: {
    Name: [
        { required: true, message: '请输入分类名称', trigger: 'blur', type: 'array' },
    ]
}