Yesterday, Computer Manager automatically deleted some files after anti-virus. Now npm run dev runs vue successfully, but an error like net::ERR_NAME_NOT_RESOLVED is prompted and the browser cannot display it. Within the LAN, other colleagues can access the website I run through IP. Is there any way to solve this? The system has no backup and cannot be restored! 
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Check if there is any problem with DNS. If you can access the Internet, clear the browser cache and try again
The situation I encountered was caused by the browser advertising plug-in. Disable the plug-in and give it a try