Webpack uglify fails about svg-spritemap-webpack-plugin HOT 10 CLOSED

module.exports.plugins = (module.exports.plugins || []).concat([
    new SVGSpritemapPlugin({
        src: './assets/**/*.svg',
        prefix: 'icon-',
    }),
])

const path = require('path')
const webpack = require('webpack')
const SVGSpritemapPlugin = require('svg-spritemap-webpack-plugin')
const CopyWebpackPlugin = require('copy-webpack-plugin')
const UglifyEsPlugin = require('uglify-es-webpack-plugin')

process.env.BABEL_ENV = 'app'

module.exports = {
    entry: {
        renderer: path.join(__dirname, 'app/main.js')
    },
    output: {
        path: path.resolve(__dirname, './app-dist'),
        libraryTarget: 'commonjs2',
        filename: 'build.js'
    },
    resolve: {
        extensions: ['.js', '.vue', '.scss'],
        alias: {
            vue: 'vue/dist/vue.js'
        }
    },
    target: 'electron-renderer',
    module: {
        rules: [
            {
                test: /\.vue$/,
                loader:  'vue-loader',
                options: {
                    loaders: {
                        'scss': 'vue-style-loader!css-loader!sass-loader',
                        'sass': 'vue-style-loader!css-loader!sass-loader?indentedSyntax',
                        'js': 'babel-loader!eslint-loader'
                    },
                },
                include: [
                    path.resolve(__dirname, "app/"),
                ],
            },
            {
                test: /\.js$/,
                loaders: [
                    'babel-loader',
                    'eslint-loader',
                ],
                include: [
                    path.resolve(__dirname, "app/"),
                ],
            },
        ]
    },
    plugins: [
        new webpack.NoEmitOnErrorsPlugin(),
        new webpack.DefinePlugin({
            'process.env.LATER_COV': false,
        }),
        new CopyWebpackPlugin([
            {from: 'app/index.html'},
            {from: 'node_modules/terminal-notifier/terminal-notifier.app/Contents/MacOS/terminal-notifier'},
        ], {}),
    ],
    node: {
        __filename: true,
        __dirname: true
    }
}


if (process.env.NODE_ENV === 'developemnt') {
    module.exports.plugins = (module.exports.plugins || []).concat([
        new SVGSpritemapPlugin({
            src: './assets/**/*.svg',
            prefix: 'icon-',
        }),
    ])
}
if (process.env.NODE_ENV === 'production') {
    module.exports.devtool = 'source-map'
    module.exports.plugins = (module.exports.plugins || []).concat([
        new UglifyEsPlugin(),
    ])
}