有懂的大佬嘛.....
1、删除node_moduls文件夹
2、运行npm install
3、最后重新启动,npm run serve
https://blog.csdn.net/nanfengzhishui/article/details/120966443
https://blog.csdn.net/wingsky666/article/details/110117510
可看:https://blog.csdn.net/weixin_45526437/article/details/123247055