I'm currently converting an application to typescript. My npm start is working without any problem but when I try to run react-storybook I have this error
ERROR in ./src/conf.json
Module build failed: SyntaxError: Unexpected token m in JSON at position 0
at Object.parse (native)
at Object.module.exports (/node_modules/json-loader/index.js:7:48)
# ./srcReact/actions/ApiActions.js 4:16-46
Both are using the same loaders in webpack.config.js
loaders: [
{
exclude: [
/\.html$/,
/\.(js|jsx)$/,
/\.css$/,
/\.json$/,
/\.svg$/
],
loader: 'url-loader',
query: {
limit: 10000,
name: 'static/media/[name].[hash:8].[ext]'
}
},
{
test: /\.js$/,
loader: 'babel-loader',
include: [ path.resolve(__dirname, '../') ],
exclude: [ path.resolve(__dirname, 'bundles') ],
query: {
presets: ['react', 'es2015'],
plugins: ['transform-decorators-legacy'],
cacheDirectory:true
},
exclude: /(node_modules|bower_components)/
},
{
test: /\.css$/,
include: [ path.resolve(__dirname, '../') ],
exclude: [ path.resolve(__dirname, 'bundles') ],
loader: "style-loader!css-loader"
},
{
test: /\.svg$/,
loader: "svg-loader"
},
{
test: /\.json$/,
loader: "json-loader"
}
]
I also have a json.d.ts for the json
declare module "*.json" {
const value: any;
export default value;
}
After some tests it looks like the storybook is not able to load my json defition (json.d.ts).
Thanks
Finally got it working by changing my module declaration to
declare module "!json!*" {
const value: any;
export default value;
}
Adding the first ! removed the confusion between the json-loader and the typescript module. Got inspired by this github issue https://github.com/webpack-contrib/json-loader/issues/13
Related
I'm learning to build my react project using Webpack.
I already have configuration a webpack.config.js to load CSS file.
webpack.config.js:
module.exports = {
...
module: {
rules: [
{
test: /\.css$/,
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 getting this error in IE when I try run my react site. It works in all other browsers and I have tried to load babel-polyfill multiple ways.
IE 11 error:
Here is my webpack.dev.config.js file
const path = require('path');
module.exports = {
devtool: "source-map",
mode: 'production',
entry: {
app: ['babel-polyfill', './index.js']
},
output: {
filename: 'bundle.js',
path: path.resolve(__dirname, '/dist')
},
module: {
rules: [{
test: /\.js$/,
enforce: "pre",
exclude: /node_modules/,
use: [{
loader: 'babel-loader',
query: {
presets: ['es2015', 'react', 'stage-0']
}
}]
},
{
test: /\.css$/,
loader: [ 'style-loader', 'css-loader' ]
},
{
test: /\.scss$/,
loaders: ["style-loader", "css-loader", "sass-loader"]
},
{
test: /\.(png|jpg|gif)$/,
use: [
{
loader: 'file-loader',
}]
},
{
test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
use: [{
loader: 'file-loader',
options: {
name: '[name].[ext]',
outputPath: 'fonts/'
}
}]
}]
},
};
I just can't seem to fix this error any help would be appreciated
Apologies, I didn't really post enough information for anyone to fix this as the problem didn't reside in the webpack.dev.config.js file. The problem resided in one of my React files:
publicIP().then(ip =>{
//code here
});
As IE doesn't have support for ES6 the => was causing the error!
I am trying to integrate a very simple React app written in TypeScript with Storybook. I tried to follow several issues on the Storybook issue list, but can't tell what is the latest information. When I try to run the Storybook, I get the following error:
ERROR in ./.storybook/config.js
Module not found: Error: Can't resolve '../stories' in
'react-mobx-mui-ts-seed/.storybook' # ./.storybook/config.js 6:4-25
Can someone please point me to where I may be going wrong? The full project is available on Github here: https://github.com/archfirst/react-mobx-mui-ts-seed
Here's my webpack.config.js for Storybook:
const path = require('path');
const SRC_PATH = path.join(__dirname, '../src');
module.exports = {
module: {
rules: [
{ test: /\.ts$/, loader: 'ts-loader', exclude: /node_modules/ },
{ test: /\.tsx$/, loader: 'ts-loader', exclude: /node_modules/ },
{
test: /\.(jpg|png|svg)$/,
loader: 'file-loader',
exclude: /node_modules/
},
{
test: /\.css$/,
use: [{ loader: 'style-loader' }, { loader: 'css-loader' }]
}
]
},
resolve: {
modules: [SRC_PATH, 'node_modules']
},
plugins: []
};
Thanks in advance.
Edit: I have this working now. You can visit the Github project link for the updated working code.
Error Terminal
ERROR in ./~/semantic-ui-css/semantic.css
You may need an appropriate loader to handle this file type.
SyntaxError: Unexpected character '#' (11:0)
Error Console chrome
Uncaught Error: Cannot find module "semantic-ui-css/semantic.css"
I found the error it's in this line import 'semantic-ui-css/semantic.css'; so i search for this kind of error, i just installed url-loader and keeps the same error, here's my webpack config
module: {
loaders: [
{ test: /\.js$/, 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
}
}
}]
}`
Migrating from a working Webpack v1 config to Webpack 2. But running into an error while trying to run the build:
ERROR in ./src/index.jsx
Module build failed: TypeError: /home/pierce/Projects/my-js-app/src/index.jsx: Cannot create property 'mappings' on string
I have updated my loaders to match the new format:
module: {
rules: [
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
loader: "babel-loader"
},
{
test: /\.(jpg|png)$/,
loader: 'file-loader',
query: {
name: '[path][name].[hash].[ext]',
},
},
{
test: /\.css$/,
loader: "style-loader!css-loader"
},
{
test: /\.scss$/,
use: [
{
loader: 'style-loader'
},
{
loader: 'css-loader'
},
{
loader: 'sass-loader',
options: { sourceMap: true }
}
]
},
{
test: /\.(woff|woff2|eot|ttf|svg)(\?v=\d+\.\d+\.\d+)?/,
loader: 'url-loader',
query: {
limit: 100000
}
},
{
test: /\.icon-svg$/,
use: [{loader:'babel-loader'}, {loader: 'svg-react-loader'}]
},
// Bootstrap 3
{
test: /bootstrap-sass\/assets\/javascripts\//,
loader: 'imports-loader?jQuery=jquery'
}
]
},
It's as if something is not being compiled the way it was before, therefore causing a TypeError.
Turns out I was babelifing twice.
If you're also splitting your webpack.config.js into separate files for your different environments, be sure that webpack.dev.config.js does not include a babel-loader entry if your webpack.base.config.js does.
Otherwise, if you use the loader twice the 2nd time around will cause an error. This wasn't a Webpack 2 error but a webpack splitting-configs-and-missing-a-small-thing error
Encountered a similar issue in my compilation. Found out that I was using babel loader for .js and .jsx both.
Removed .jsx and its working as expected.
A snippet of my webpack.config.js looks like this.
{
test: /\.js$/,
exclude: [/(node_modules)/],
use: [
{
loader: 'react-hot-loader'
},
{
loader: 'babel-loader',
options: {
presets: ['react', 'es2015', 'stage-0'],
plugins: [
'transform-class-properties',
'transform-decorators-legacy'
]
}
}
]
}
In case someone else is having the same issue, I had to remove the following from loader for it to work
{
test: /\.jsx?$/,
use: ['react-hot-loader/webpack']
}
In my case it helped when I removed devtool: 'inline-source-map' from webpack