vue中使用日期选择器报错，该怎么解决啊

Question

vue中使用日期选择器报错，该怎么解决啊
//vue.runtime.esm.js?8642:4560 [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"
//

Answer 1

v-model中的绑定的值改成null试一下，或者换一下版本