Error with css-loader

Error message looks like this:

var api = require("!./node_modules/_style-loader@1.2.1@style-loader/dist/runtime/injectStylesIntoStyleTag.js");

If you’re using Storybook, or multiple webpack configs of dev/prod, or simply multiple rules… Either way, this error means you’ve specified rules for CSS more than once.

For example, Storybook already has a set of default rules for various file types, and CSS is one of them, so you cannot specify custom CSS rules again.


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