I have a webpack.config with loaders like this:
loaders: [
{
test: /\.js$/,
exclude: /node_modules/,
loaders: [ 'react-hot', 'babel-loader' ]
},
{
exclude: /node_modules/,
loader: 'eslint-loader',
test: /\.js$/
}
],
I exclude node_modules because other ways react-hot would get in trouble saying things like this
My problem is that: by excluding node_module, a private npm package that needs babel-loader, would not be loaded into the bundle.
How can I manage excluding for each loader?
You can use the include property for the loader instead of exclude. For example:
loaders: [
{
test: /\.js$/,
include: [
path.resolve(__dirname, "app/src"),
// some module in node_modules folder
],
loaders: [ 'react-hot', 'babel-loader' ]
},
...
],
Note that both webpack and react-hot-loader recommend using include over exclude whenever possible.
Related
I'm learning to build my react project using Webpack.
I already have configuration a webpack.config.js to load CSS file.
webpack.config.js:
module.exports = {
...
module: {
rules: [
{
test: /\.css$/,
exclude: /(node_modules)/,
use: [
{ loader: 'style-loader' },
{ loader: 'css-loader' },
],
},
{
test: /\.scss$/,
exclude: /(node_modules)/,
use: [
{ loader: 'style-loader' },
{ loader: 'css-loader' },
{ loader: 'sass-loader' },
],
},
...
],
},
...
}
npm run build
This problem appeared.
Module parse failed: Unexpected token (6:3) You may need an
appropriate loader to handle this file type, currently no loaders are
configured to process this file. See
https://webpack.js.org/concepts#loaders | * Copyright 2011-2020
Twitter, Inc. | * Licensed under MIT
(https://github.com/twbs/bootstrap/blob/main/LICENSE)
> */:root{--blue:#007bff;--indigo:#6610f2;--purple:#6f42c1;--pink:#e83e8c;--red:#dc3545;
..... ```
I don't understand what should to do. Thank you.
Not sure why you exclude node_modules why you're still importing css from there which means just remove exclude: /(node_modules)/ then would work:
{
test: /\.css$/,
// exclude: /(node_modules)/, // Remove this
use: [
{ loader: 'style-loader' },
{ loader: 'css-loader' },
],
},
I am trying to utilize the react-spinkit package for my React.js web application. Within this application I have opted to use CSS modules. When I made the switch to CSS modules, I noticed that the spinner component that I created was not rendering. I am sure this has to do with the fact that I am now using CSS modules. Currently my webpack.config.js file looks something like this:
module.exports = {
//other configurations...
module: {
rules: [
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
use: 'babel-loader'
},
{
test: /\.css$/,
loader: 'style-loader!css-loader? modules&importLoaders=1&localIdentName=[name]__[local]___[hash:base64:5]'
}
]
}
}
I believe that I need to set a rule for regular css to be compiled by the css-loader. However, I am not aware of how to combine a rule so that the css-loader can use both css modules and regular css. Any help would be appreciated.
try having your config look like this in that section:
rules: [
{
test: /\.jsx?$/,
exclude: /node_modules/,
loader: 'babel-loader'
},
{
test: /\.css$/,
use: ['style-loader', 'css-loader']
}
]
ERROR in ./node_modules/bootstrap/dist/fonts/glyphicons-halflings-regular.woff 1:4
Module parse failed: Unexpected character '' (1:4)
You may need an appropriate loader to handle this file type.
(Source code omitted for this binary file)
WOFF files are failing to load and I am not getting an idea to why file-loader is failing to load WOFF, WOFF2 and SVG.
Here is my Webpack 4 loaders config:
module: {
rules: [
{
//tell webpack to use jsx-loader for all *.jsx files
test: /\.(js|jsx)$/,
exclude: /node_modules/,
loader: "babel-loader"
},
{
test: /\.css$/,
loader: "style-loader!css-loader"
},
{
test: /\.(png|jpg|jpeg|gif|svg|woff|woff2)$/,
exclude: /node_modules/,
loader: "file-loader"
},
{
test: /\.(eot|ttf)$/,
loader: "file-loader",
},
{
test: /\.html$/,
exclude: /node_modules/,
loader: 'html-loader'
},
{
test: /\.scss$/,
loaders: ["style-loader", "css-loader", "sass-loader"]
}
]
}
Please suggest a solution to me.
You can user webpack url-loader for that and it will resolve your problem.If you are using npm you can install npm install url-loader --save-dev and in your webpack.config.js you can write module settings like this
{test: /\.(jpg|jpeg|png|woff|woff2|eot|ttf|svg)$/,loader: 'url-loader?limit=100000'}
and import images like import img from './image.svg'
Github : https://github.com/webpack-contrib/url-loader
NPM : https://www.npmjs.com/package/url-loader
{
test: /\.woff(2)?$/,
use: [
{
loader: 'url-loader',
options: {
limit: 10000,
name: './font/[hash].[ext]',
mimetype: 'application/font-woff'
}
}
]
}
It worked for me. And also you can use resolve-url-loader
https://www.npmjs.com/package/resolve-url-loader
Error Terminal
ERROR in ./~/semantic-ui-css/semantic.css
You may need an appropriate loader to handle this file type.
SyntaxError: Unexpected character '#' (11:0)
Error Console chrome
Uncaught Error: Cannot find module "semantic-ui-css/semantic.css"
I found the error it's in this line import 'semantic-ui-css/semantic.css'; so i search for this kind of error, i just installed url-loader and keeps the same error, here's my webpack config
module: {
loaders: [
{ test: /\.js$/, loader: 'babel-loader', exclude: /node_modules/ },
{ test: /\.jsx$/, loader: 'babel-loader', exclude: /node_modules/ },
{
test: /\.(png|woff|woff2|eot|ttf|svg)$/, <--- this delete a lot of errors with semantic, but wont work with "Unexpected character '#'"
loader: 'url-loader?limit=100000'
},
{
test: /\.js$/,
exclude: /node_modules/,
loader: 'eslint-loader'
},
{
test: /\.css$/,
loaders: [
'style-loader?sourceMap',
'css-loader?modules&importLoaders=1&localIdentName=[path]___[name]__[local]___[hash:base64:5]'
],
exclude: /node_modules/
},
{
test: /\.scss$/,
loaders: [
'style-loader',
'css-loader?modules&importLoaders=1&localIdentName=[path]___[name]__[local]___[hash:base64:5]',
'resolve-url-loader',
'sass-loader'
],
exclude: /node_modules/
}
]
}
so, how should i fix this issue? i think it's something with import 'semantic-ui-css/semantic.css'; for something that i dont get it yet, maybe because it dosnt have import (this section) from 'semantic-ui-css/semantic.css';
change this:
{
test: /\.css$/,
loaders: [ 'style-loader?sourceMap', 'css-loader?modules&importLoaders=1&localIdentName=[path]___[name]__[local]___[hash:base64:5]' ],
exclude: /node_modules/
},
to this:
{
test: /\.css$/,
loaders: [ 'style-loader?sourceMap', 'css-loader?modules&importLoaders=1&localIdentName=[path]___[name]__[local]___[hash:base64:5]' ]
}
In other words... remove the exclude.
Another option is to not change as mentioned above... And you probably dont want to assume css modules for all node_modules. I think this way is better... So, instead add an additional rule:
{
test: /\.css$/,
include: path.resolve('node_modules'),
use: [
{
loader: 'style-loader',
options: {
sourceMap: true
}
}, {
loader: 'css-loader',
options: {
sourceMap: true
}
}
}]
}`
I want to add .scss support in my app, which was created using create-react-app.
I did eject npm run eject and installed necessary dependencies: npm install sass-loader node-sass --save-dev
Inside config/webpack.config.dev.js I added to the loaders this snippet:
{
test: /\.scss$/,
include: paths.appSrc,
loaders: ["style", "css", "scss"]
},
So the beginning of the loaders array now look like so:
loaders: [
// Process JS with Babel.
{
test: /\.(js|jsx)$/,
include: paths.appSrc,
loader: 'babel',
query: require('./babel.dev')
},
// "postcss" loader applies autoprefixer to our CSS.
// "css" loader resolves paths in CSS and adds assets as dependencies.
// "style" loader turns CSS into JS modules that inject <style> tags.
// In production, we use a plugin to extract that CSS to a file, but
// in development "style" loader enables hot editing of CSS.
{
test: /\.css$/,
loader: 'style!css!postcss'
},
// LOAD & COMPILE SCSS
{
test: /\.scss$/,
include: paths.appSrc,
loaders: ["style", "css", "scss"]
},
Now in my jsx when I try to import scss file:
import './assets/app.scss';
I get an error:
Uncaught Error: Cannot find module "./assets/app.scss"
So my config must be wrong as I'm not able to load .scss files. How to adjust config to load .scss files in ejected create-react-app?
Check the first loader, first it get all the files and it excludes the other loaders files
loaders: [
{
exclude: [
/\.html$/,
/\.(js|jsx)$/,
/\.css$/,
/\.json$/,
/\.svg$/
],
loader: 'url',
query: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]'
}
},
so adding
/\.sass$/,
/\.scss$/,
to exclude, seems that fixed the same problem I had :D
When trying to integrate sass into empty react project I used this article. The solution presented there did not work and received the similar error as in the subject.
In my case replacing style-loader with require.resolve('style-loader') helped:
{
test: /\.scss$/,
include: paths.appSrc,
loaders: [require.resolve('style-loader'), require.resolve('css-loader'), require.resolve('sass-loader')]
},
OK, I found the solution - changed from this:
{
test: /\.scss$/,
include: paths.appSrc,
loaders: ["style", "css", "scss"]
},
to this:
{
test: /\.scss$/,
loaders: ['style', 'css', 'sass']
},
And now my .scss files are loading!!
You probably have to use
include: paths.appSrc,
option to enable webpack hot-reload. So you config snippet could looks like
{
test: /\.scss$/,
include: paths.appSrc,
loaders: ['style', 'css', 'sass']
},
as per Latest Configuration [CRA]
::webpack.config.dev.js::
{
test: /\.css$/,
use: [
require.resolve('style-loader'),
{
loader: require.resolve('css-loader'),
options: {
importLoaders: 1,
},
},
{
loader: require.resolve('postcss-loader'),
options: {
// Necessary for external CSS imports to work
// https://github.com/facebookincubator/create-react-app/issues/2677
ident: 'postcss',
plugins: () => [
require('postcss-flexbugs-fixes'),
autoprefixer({
browsers: [
'>1%',
'last 4 versions',
'Firefox ESR',
'not ie < 9', // React doesn't support IE8 anyway
],
flexbox: 'no-2009',
}),
],
},
},
],
},
{
test: /\.scss$/,
loaders: [
require.resolve("style-loader"), // creates style nodes from JS strings
require.resolve("css-loader"), // transl ates CSS into CommonJS
require.resolve("sass-loader") // compiles Sass to CSS
]
},
Check this loader settings for the latest versions.
{
test: /\.scss$/,
use: [
"style-loader", // creates style nodes from JS strings
"css-loader", // translates CSS into CommonJS
"sass-loader" // compiles Sass to CSS
]
}