Error while parsing JSON - npm run build


I experience an error message when attempting npm run build in React Setup, Part V: Conclusion. I have attempted to figure out the error for a while now with no luck. Perhaps I am missing something.
This is the error message:

This is a similar message as another poster, but the solution did not work for me.
This is the code in index.js, .babelrc and webpack.config.js:

If I need to show additional files, please let me know. Thanks in advance!

// Content in app/index.js
var React = require('react');
var ReactDOM = require('react-dom');
var App = require('./components/App');

    <App />,

// Content in .babelrc
{ "presets": ["react"] }

// Content in webpack.config.js
var HTMLWebpackPlugin = require('html-webpack-plugin');
var HTMLWebpackPluginConfig = new HTMLWebpackPlugin({
    template:   __dirname + '/app/index.html',
    filename:   'index.html',
    inject:     'body'

module.exports = {
    entry: __dirname + '/app/index.js',
    module: {
        loaders: [
                test: /\.js$/,
                exclude: /node_modules/,
                loader: 'babel-loader'
    output: {
        filename: 'transformed.js',
        path: __dirname + '/build'
    plugins: [HTMLWebpackPluginConfig]


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