"You forgot to add the 'CompiledExtractPlugin'"

Describe the bug After upgrading from 0.8.0 of @compiled/webpack-loader to 0.8.3 or 0.8.4, I now receive this error

Failed to compile.

██████╗ ██████╗ ███╗   ███╗██████╗ ██╗██╗     ███████╗██████╗
██╔════╝██╔═══██╗████╗ ████║██╔══██╗██║██║     ██╔════╝██╔══██╗
██║     ██║   ██║██╔████╔██║██████╔╝██║██║     █████╗  ██║  ██║
██║     ██║   ██║██║╚██╔╝██║██╔═══╝ ██║██║     ██╔══╝  ██║  ██║
╚██████╗╚██████╔╝██║ ╚═╝ ██║██║     ██║███████╗███████╗██████╔╝
 ╚═════╝ ╚═════╝ ╚═╝     ╚═╝╚═╝     ╚═╝╚══════╝╚══════╝╚═════╝

  @compiled/webpack-loader

  You forgot to add the 'CompiledExtractPlugin' plugin (i.e `{ plugins: [new CompiledExtractPlugin()] }`), please read https://compiledcssinjs.com/docs/css-extraction-webpack

My webpack.config.js does have the CompiledExtractPlugin. It’s essentially a standard react ejected webpack.config.js, plus compiled library, following your docs.

Expected behavior Should continue to work largely as before upgrading from 0.8.0

[hannahkmolloy]

Oh damn, sorry! It seems you have uncovered two bugs for us. I think there is another bug with how we check the loader is defined. We simply check if the loader property is equal to @compiled/webpack-loader but since you are using require.resolve to load the @compiled/webpack-loader, the loader property will be equal to the path to the loader. I will need to update this check.

[hannahkmolloy]

@onionhammer I have found the issue. In version 0.8.1, we updated how we check whether the CompiledExtractPlugin is used, but we didn’t consider the case of nested rules - like you have here. Thanks for raising this bug, I am working on a fix right now.