Easiest way to reproduce this is by running the webpack tutorial from a directory that contains parentheses in the name.

This is an issue in chokidar (see paulmillr/chokidar#533). There is a PR open to fix it.

This will also be fixed if we move to another watching library, which #41 intends to do.

For more info:

• webpack --watch is not working on windows if root folder contains '(' or ')' in its name webpack#2258
• webpack --watch doesn't work with parenthesis in the project path webpack#2753