movies-javascript-bolt | Neo4j Movies Example with webpack-in-browser app | Graph Database library

You don't necessarily need async/await in order to make your code work. This is just syntaxic sugar but the mechanism under the hood is exactly the same, and it does not allow to do more things (an async function is just a function returning a Promise). It just allows to make the code more compact and readable.

If you still want to use this syntax, you'll have to update Webpack and Babel to their latest versions, and update their configurations (use babel-presets-2017 which allows to transform async/await to generator functions in order to enable older runtimes to run your code).

The error code you have is related to this particular feature of Babel (you could also disable it completely).