Are you using webpack 3? That change happened in February with webpack 4: https:...

		rhinoceraptor on April 23, 2018 \| parent \| context \| favorite \| on: Show HN: Create a personalized and optimized webpa... Are you using webpack 3? That change happened in February with webpack 4: https://github.com/webpack/webpack/releases/tag/v4.0.0