There is a memory leak error when using vuecli3.0. What is the cause of this?

prompts the following error after executing npm run serve :

(node:16128) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 upgrade listeners added. Use emitter.setMaxListeners() to increase limit

I didn"t have this prompt when I did it before.
excuse me, what is the cause of this?
is there any solution?


you can only add 10 proxies in the devServer of vue.config.js. This problem occurs when you add 11 to


refer to the following two links,
1, portal
2, portal

< hr >

if it is helpful, please click to adopt it, thank you ~

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-7b93bf-28467.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b93bf-28467.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?