Unknown custom element: <router-view> - did you register the component correctly? For recursive components, make sure to provide the "name" option.
found in
不能识别<router-view> 标签
原因：main.js没有引入vueRouter
解决办法：在main.js引入vueRouter
标签：Vue,中路,配置,js,vueRouter,引入,main From： https://www.cnblogs.com/xiaofengstu/p/17012773.html