Npm start error after installing npm I webpack-parallel-uglify-plugin

background:
the packing speed of the project is now very slow. Check the Internet about the method of optimizing the packing speed. It is said that the packing speed is obviously fast by using webpack-parallel-uglify-plugin instead of webpack.optimize.UglifyJsPlugin . After installing webpack-parallel-uglify-plugin , re-npm start, only does these two operations, first

. 
npm i webpack-parallel-uglify-plugin

then did not change any code 

npm start

found that an error was reported in the console

Webpack
Mar.30,2021

my webpack.prod.conf.js configuration 

plugins: [
...
new ParallelUglifyPlugin({
  cacheDir: '.cache/',
  uglifyJS: {
    output: {
      comments: false
    },
    compress: {
      warnings: false
    }
  },
  sourceMap: config.build.productionSourceMap
}),
...
]

No problem with packing

There is a problem with the version of

webpack-parallel-uglify-plugin. The old version certainly does not support es6 syntax, so it is written as follows

. 
new ParallelUglifyPlugin({ 
  uglifyJS: {
  }
})

the new version should be written like this, turning uglifyJS into uglifyES 

new ParallelUglifyPlugin({ 
  uglifyES: {
  }
})

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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-64f5-1e45ab8-590d8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e45ab8-590d8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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