When I run `webpack --mode development`, I get the following error:

**Edit**
A comment requested to see my .babelrc, added below
 - I've tried all combinations of index and app files as both, or each, as .jsx files, but to no avail.
 - I've also tried removing and readding all the node modules as latest version for node (v10.x.x)

```
ERROR in ./src/index.js 4:16
  Module parse failed: Unexpected token (4:16)
  You may need an appropriate loader to handle this file type.
  | import ReactDOM from "react-dom";
  | import app from "./app.js";
 ReactDOM.render(<app />, document.getElementById("root"));

```

**app.js**

```js
import React, {Component} from "react";
import {hot} from "react-hot-loader";
import "./app.css";

class app extends Component{
  render(){
    return(
      <div className="app">
        <h1> Hello, World! </h1>
      </div>
    );
  }
}

export default app;
```

**index.js**

```js
import React from "react";
import ReactDOM from "react-dom";
import app from "./app.js";
ReactDOM.render(<app />, document.getElementById("root"));
```

**webpack.config.js**

```js
const path = require("path");
const webpack = require("webpack");

module.exports = {
  entry: "./src/index.jsx",
  mode: "development",
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /(node_modules|bower_components)/,
        loader: "babel-loader",
        options: { presets: ["@babel/env"] }
      },
      {
        test: /css\*\.css$/,
        use: ["style-loader", "css-loader"]
      }
    ]
  },
  resolve: { extensions: ["*", ".js", ".jsx"] },
  output: {
    path: path.resolve(__dirname, "dist/"),
    publicPath: "/dist/",
    filename: "bundle.js"
  },
  devServer: {
    contentBase: path.join(__dirname, "public/"),
    port: 3000,
    publicPath: "http://testsite.test/",
    hotOnly: true
  },
  plugins: [new webpack.HotModuleReplacementPlugin()]
};
```

```js
{
  "presets": [
    "env",
    "react",
    "stage-0"
  ],
  "plugins": [
    "transform-class-properties",
    "transform-decorators",
    "transform-react-constant-elements",
    "transform-react-inline-elements"
  ]
}
```

I'm going to try and get this loaded on GH soon, but I'm having some real trouble with my GH account and connection on my device right now (ssh key issues). Bear with me on that, hopefully the above is enough to help.

**Edit #2:** Here is my github repo
<https://github.com/johnfwebdev/testsite.test>