Webpack throwing error on SCSS #import SCSS - css

Question

I'm trying to process multiple SCSS files into a single external CSS file in Webpack (3.6.0) except I'm encountering issues around the parsing of the #import statements.
Entry index.js contains:
import './styles/main.scss';
Entry SCSS:
#import 'reset.scss';
#import 'global.scss';
#import 'fonts.scss';
#import 'system.scss';
Current webpack:
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
module.exports = {
entry: {
app: './src/index.js'
},
context: path.resolve(__dirname),
output: {
path: path.resolve(__dirname, 'public'),
filename: 'bundle.js',
},
plugins: [
new CleanWebpackPlugin(['app']),
new HtmlWebpackPlugin({
title: 'Minimum-Viable',
filename: 'index.html',
template: './public/index.html',
}),
],
module: {
rules: [
{
test: /\.js$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
options: {
presets: [
'es2015',
'react',
],
plugins: ['transform-class-properties'],
},
},
},
{
test: /\.scss$/,
include: [
path.resolve(__dirname, 'styles')
],
use: [
{loader:'style-loader'},
{loader:'css-loader'},
{loader:'sass-loader'}
]
},
],
},
resolve: {
extensions: ['.js','.scss']
}
};
The Error being thrown is:
ERROR in ./src/styles/main.scss Module parse failed: Unexpected character '#' (1:0)
You may need an appropriate loader to handle this file type. | #import 'reset.scss';
Any pointers gratefully received.

Answer 1

I managed to reproduce the error and it seems to come from:
include: [
path.resolve(__dirname, 'styles')
],
The path is the issue cause the loader searches for /styles in ./styles but looking at your entry point:
entry: {
app: './src/index.js'
},
It should actually be ./src/styles so:
include: [
path.resolve(__dirname, 'src', 'styles')
],

Answer 2

with:
include: [
path.resolve(__dirname, 'styles')
],
you are instructing webpack to use your loader chain only on files residing in your styles folder.
reset.scss looks like a node dependency usually stored in your node_module, which is excluded from SASS processing by the include option.
Try to remove your SASS include option or to extend it in order to include node_folder or the specific module imported by your styles.

Answer 3

I basically have the same config as you, except for two things:
{
test: /\.scss$/,
exclude: /node_modules/,
use: ["style-loader", "css-loader", "sass-loader"]
}
If your webpack is in a different folder compared to your project root, __dirname may not work out for you. You might need to remove that statement all together or change it to process.cwd(). I can give you another hint and that may be that you are missing the node-sass package. Secondly, you are probably not using the right syntax for webpack version 2 or 3 as shown in the use key.

Answer 4

Have you tried Extract text webpack plugin
https://github.com/webpack-contrib/extract-text-webpack-plugin
Basically it will collect all of your styles files(imported in your code) and pack it to bundled css which you can then just link to your html.

Answer 5

Did you try this way?
index.js:
import './styles/main.scss';
import './styles/reset.scss';
import './styles/global.scss';
import './styles/fonts.scss';
import './styles/system.scss';