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Browser error: Uncaught TypeError: Cannot redefine property: $router
光阴似箭催人老，日月如移越少年。
The one you imported may already include the router. Go and look at the index.js under the router. It should already be defined in it
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
The one you imported may already include the router. Go and look at the index.js under the router. It should already be defined in it