Configure webpack plug-in prompt webpack not defined in vue-cli3

configure in vue.config.js:

> vue-cli-service serve

 INFO  Starting development server...
 ERROR  ReferenceError: webpack is not defined
ReferenceError: webpack is not defined

question:
1. Why did you report this error?
2. How can I modify it to pass successfully?

Jun.18,2021

you haven't even introduced webpack
you must have reported an error


require ('webpack/lib/IgnorePlugin')

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-64f5-1b365ee-2c018.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b365ee-2c018.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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