报错：[Vue warn]: Avoid mutating a prop directly since the value will be overwritten whenever the paren

今天在做Vue的时候，子组件关闭的时候，报如下错误

报错：vue.esm.js?65d7:610 [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: "isVisible"

问题解决：

父组件里面调用子组件的代码 

<NoteBookLimitFlow :isVisible="isShowFlowSearch"></NoteBookLimitFlow>

　　

isVisible用来判断是否显示子组件

子组件里面的代码

<el-dialog title="XXXX"              
               :visible.sync="IsShowPage"
               @close="closeForm()">
</el-dialog>

watch: {
            isVisible(val) {
                this.IsShowPage = val;//新增isVisible的watch，监听变更并同步到IsShowPage上
            }
        },


data() {
        return {
            //定义一个IsShowPage来接收传递过来的值 
            IsShowPage: this.isVisible,                          
        }
    }