javascript - elementui中select、时间插件验证问题？ 跪求大神指点！！！！！

1、设置的验证是为空的时候进行验证，当select选中值还报错；

<el-form label-width="100px" style="margin:20px;" :model="addForm" :rules="rules" ref="addForm" label-position="left">

<el-form-item label="报表" :label-width="formLabelWidth" prop="report">

<el-select v-model="addForm.reportValue" placeholder="请选择报表" style="width:275px">
    <el-option v-for="item in addForm.reportOptions" :label="item.name" :value="(item.id)*1">
    </el-option>
</el-select>

</el-form-item>

report: [{

required: true, 
message: '请选择报表', 
trigger: 'change' 

}],

未选中值时

选中值时