error when using Css Modules composes with webpack 2

[JounQin]

I've looked through the issue #131, but it didn't work.

---

I'm using CssModules with css-loader, postcss-loader, stylus-loader, it throws an error:

Uncaught (in promise) TypeError: Cannot read property 'modal' of undefined

I've tried to change the importLoaders to be "2", but this error still occurs.

My total loader config string is:

style-loader!css-loader?-minimize&modules&camelCase&importLoaders=2&localIdentName=[name][local]_[hash:base64:5]&sourceMap!postcss-loader?sourceMap!stylus-loader?sourceMap

I looked through the compiled style code:

exports.locals = {
	"prompt": "prompt-modal__prompt___ySAyV " + __webpack_require__(699).locals["modal"] + "",
	"prompt": "prompt-modal__prompt___ySAyV " + __webpack_require__(699).locals["modal"] + "",
	"btn-prompt": "prompt-modal__btn-prompt___2k-dR",
	"btnPrompt": "prompt-modal__btn-prompt___2k-dR",
	"prompt-text": "prompt-modal__prompt-text___gQ1v5",
	"promptText": "prompt-modal__prompt-text___gQ1v5"
};

webpack_require(699) is an array as following:

[therealcisse]

I'm also getting this error but with sass-loader and using webpack 1.

[JounQin]

I'm using css-loader in a Vue project, it seems to be an issue of vue-loader.

vuejs/vue-loader#501

I fix this problem by importing .styl file in script by myself, so that it won't be imported through vue-loader.