Error in path after new ExtractTextPlugin file is packaged

part of the configuration of webpack.confing.js is as follows

new ExtractTextPlugin("css/[name].[contenthash:8].css"),

items are packaged as follows

csscss
csscss

Mar.09,2021

final solution new ExtractTextPlugin ("[name]. [contenthash:8] .css")
OK without specifying a folder for css when packaged.
but the reason is not clear. Which passing god can give us some advice would be greatly appreciated

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-64f5-1b31174-402f4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b31174-402f4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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