demo

Project setup

yarn install

Compiles and hot-reloads for development

yarn serve

Compiles and minifies for production

yarn build

Lints and fixes files

yarn lint

process

PS：This project is the smallest project created by Vue cli tool. Please open it first and then decide whether to close it;
1：git clone https://github.com/peamed/vue-bug-1.git(已经是最小项目了，通过vue-cli创建的，没有业务代码)；
2：npm install
3：npm run serve
4：打开本地服务链接：http://localhost:8080/
5：点击页面的home路由按钮
6：再点击页面的about路由按钮
7：再点击home路由按钮，回到home页面
8：再打开您的代码编辑工具，编辑HomeView.vue文件，如在mounted钩子函数中新增一行代码，然后点击保存运行
9：在浏览器中就会出现：runtime-core.esm-bundler.js?d2dd:5483 Uncaught (in promise) TypeError: parentComponent.ctx.deactivate is not a function