Skip to main content
Version: 5.x

migration

-->​

sidebar_position: 2

title: Migration​

ko is built on top of webpack so it's easy to migrate from webpack.

caution

ko use webpack v5 internally, so if you use webpack v4 or earlier webpack version before, please refer to webpack migrate

Remove duplicated loaders & plugins​

There are some built-in webpack loaders & plugins in ko as shown below:

Loaders​

  • babel-loader and babel dependencies
  • css-loader
  • esbuild-loader
  • less-loader and it's dependencies
  • postcss-loader
  • sass-loader and it's dependencies
  • thread-loader
  • worker-loader

plugins​

  • @pmmmwh/react-refresh-webpack-plugin
  • case-sensitive-paths-webpack-plugin
  • css-minimizer-webpack-plugin
  • tsconfig-paths-webpack-plugin

You should remove them from your package.json if you have used them.

Create ko.config.js​

ko.config.js let you customize your own configs, and all your customized configs will be merged into internal webpack instance.we recommend you override copy-webpack-plugin,html-webpack-plugin if needed. you can get more details in FAQ

Run commands as you'd like​

You can run pnpm ko -h then you can find all ko commands, choose one you'd like and use it.