[Bug Report] [Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders. Instead, use a data or computed property based on the prop's value. Prop being mutated: "placement"
解决方法一
将element-ui的版本降至 2.15.6以下(包含2.15.6)
npm install element-ui@2.15.6
解决方法二
添加一个 align="center" 就不报错了。代码如下:
<el-date-picker
align="center"
v-model="listQuery.createTime"
type="date"
:clearable="false"
format="yyyy-MM-dd"
value-format="yyyy/MM/dd"
placeholder="选择日期"
/>