ice2版本webpack plugin请教

[Lpbzzz]

webpack.SplitChunksPlugin

应该如何使用啊？

    'webpack.SplitChunksPlugin': {
      options: {
        minSize: 20000,
        maxSize: 50000,
      },
    },

会提示

ERR! Invalid plugin configuration: plugin('webpack.SplitChunksPlugin').use(<Plugin>) was not called to specify the plugin 
Error: Invalid plugin configuration: plugin('webpack.SplitChunksPlugin').use(<Plugin>) was not called to specify the plugin

是名称的问题吗？