Webpack Warning - There is another module with equal name when case is ignored

My Webpack build logs the following warning:

WARNING in ./~/classNames/index.js There is another module with an equal name when case is ignored. This can lead to unexpected behavior when compiling on a filesystem with other case-semantic. Rename module if multiple modules are expected or use equal casing if one module is expected.

I checked the webpack repo and they have a related issue #382

I use ES2015 module syntax as follows:

import classNames from 'classnames';

I quickly checked your code and found two possible parts causing this warning:

• it exports two additional variations (dedupe and bind) as the same name.
• The module names used to export as AMD and CommonJS Syntax are not consistent - classNames vs. classnames

[dcousens]

I vote the AMD exports are removed entirely; then this is a non-issue.

[anilanar]

Assuming most people have now switched to ES imports, why doesn’t classnames have an ES6 main file using module key in package.json? module.exports can be mapped to ES in 2 different ways (wildcard import and default import) which causes issues if used in a complicated scenarios with typescript, babel, node etc.