I recently started learning nextjs/react and got stuck following the tutorials on the official nextjs website when trying to export my app into a static site:
I'm using sass for styling the app, and when trying to run the npm run build script, it throws me an error saying
Module parse failed: Unexpected token (1:0) You may need an
appropriate loader to handle this file type.
I've checked through my code structure & setup and couldn't figure out what went wrong. It looks like the error has something to do with the sass loader? Any pointers would be greatly appreciated.
below are a few screenshots of my setup.
You need to add sass-loader dependency.
npm i -D sass-loader
and then add it like this:
config.module.rules.push(
{
test: /\.s(a|c)ss$/,
use: ['babel-loader', 'raw-loader',
{ loader: 'sass-loader' },
],
},
);
You have two module.exports in your next.config.js which is invalid.
Perhaps try passing the config to withSass and exporting that...
module.exports = withSass({ exportPathMap: /* ... etc ... */ })
Related
Given the webpack.mix.js of a fresh Laravel project :
const mix = require('laravel-mix');
/*
|--------------------------------------------------------------------------
| Mix Asset Management
|--------------------------------------------------------------------------
|
| Mix provides a clean, fluent API for defining some Webpack build steps
| for your Laravel application. By default, we are compiling the Sass
| file for the application as well as bundling up all the JS files.
|
*/
mix.js('resources/js/app.js', 'public/js')
.sass('resources/sass/app.scss', 'public/css');
What is the equivalent using just webpack and a webpack.config.js? (Im looking to remove laravel mix as a dependency on an existing project.)
I did find this default file in the source but it did not help me. Is there a way I can see the "compiled/resulting" webpack configuration or a template/starting point that corresponds to laravel mix default settings?
You can, but the result is not very satisfactory.
Create a JS script with this:
console.log (JSON.stringify(
require('./node_modules/laravel-mix/setup/webpack.config.js'), null, 4)
);
and save it in the root folder of your laravel project. Run it with Node and the output will be the configuration object Laravel Mix receives and inputs to webpack.
However, this file is very long and covers a vast amount of settings, which you wouldn't need if you made your file from scratch. Yes, you could try and remove every extra setting you think you can remove without breaking your output, but in the end it's better to learn how Webpack works so you can write better, mode adjusted configs. At least you can use it to understand how it does certain things.
Just put into webpack.mix.js
Mix.listen('configReady', function (config) {
RegExp.prototype.toJSON = RegExp.prototype.toString;
console.log(JSON.stringify(config));
});
So you will get webpack config from your laravel.mix.
With recent laravel-mix you just need to invoke mix.dump() (in the webpack.mix.js script).
The file you referenced seems to point exactly to the default configuration. Why did this not help?
In order to migrate you could
Learn the basics
Extract the dependencies from Laravel mix aÇıd add them to your package.json
Hint: The dependencies there are your devDependencies
Start by installing npm install --save-dev everything "webpack", "babel" and prefixed with "-loader".
If you need Sass and extracted css - npm install --save-dev node-sass sass-loader mini-css-extract-plugin.
Minimal example of a webpack config for your mix example from above would be
const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
module.exports = {
entry: './resources/js/app.js',
output: {
filename: 'js/[name].js',
path: path.join(__dirname, 'public')
},
plugins: [
new MiniCssExtractPlugin({
filename: 'css/[name].css'
})
],
module: {
rules: [
{
test: /\.(sa|sc|c)ss$/,
use: [
{
loader: MiniCssExtractPlugin.loader,
},
'css-loader',
'sass-loader'
]
}
]
}
};
Learn the more advanced basics for your use case
I started using Vue using the Vue CLI template. In that template you create a file called 'vue.config.js' to define some settings. More to find here: https://cli.vuejs.org/guide/css.html#css-modules
I had a settings for an global css/sass file so all my components could access the variables (the file only contains vars).
vue.config.js:
module.exports = {
// So we can use the template syntages in vue components (correct me if am wrong)
runtimeCompiler: true,
// CSS settings
css: {
loaderOptions: {
sass: {
// Load in global SASS file that we can use in any vue component and any sass file
data: `
#import "#/assets/css/variables.scss";
`
}
}
}
};
Now I am working on another project. This time I use laravel and vue in one app. Laravel makes Vue works with webpack and webpack.mix.js.
Now here is where I get stuck. I can't create a config so the global css file with the variables can be recognises in the vue "one file components" I can't find any solution on the internet or my own experience to make this work.
Anyone experience with this?
Laravel mix has a shortcut to "indicate a file to include in every component styles" (look for globalVueStyles in the option available). So simply add the code below to the webpack.mix.js file at project root.
mix.options({
globalVueStyles: `resources/assets/css/variables.scss`
});
And install the dependency sass-resources-loader
npm install --save-dev sass-resources-loader
It works only as relative path. Also, the docs say that this option only works when extractVueStyles is enabled, however it was not needed for me.
To have more control over "vue-loader" you can use the undocumented function mix.override
mix.override(webpackConfig => {
// iterate and modify webpackConfig.module.rules array
})
I have laravel Vue app and it works perfectly with chrome and firefox. but it doesn't work on Edge or IE11 and the console shows error on arrow function!?
How to compile or transpile to es5 with laravel mix and webpack?
could you show the correct configuration for webpack.mix.js?
tnx alot
UPDATE February 2020
If anyone still need help with this, mix already provide a babel compilation to es5:
A slight variation of mix.scripts() is mix.babel(). Its method
signature is identical to scripts; however, the concatenated file will
receive Babel compilation, which translates any ES2015 code to vanilla
JavaScript that all browsers will understand.
You can use it like this:
mix.babel(['public/js/es6file.js'], 'public/js/app.es5.js')
DOCS
In order to compile your es6 code to es5 follow the following steps:
1) install the babel-env preset
npm install #babel/preset-env --save
And then declare it in your .babelrc in the root directory:
{
"presets": ["#babel/preset-env"]
}
2) compile your code using
npm run dev //for dev environment
or
npm run prod // for production environment
after a lot of search, I've found out that this Vuecomponent causes the error "https://github.com/godbasin/vue-select2" how can I compile it to es5.
the edge console error:
Expected identifier, string or number
and the corresponding line that it shows is this:
setOption(val = []) {
this.select2.empty();
this.select2.select2({
-----> ...this.settings,
data: val
});
this.setValue(this.value);
},
sorry for taking your time
I'm building something using the Electron framework. I'm using Vue and SCSS, and I'd like to use Laravel Mix.
However, I can't figure out how to use Laravel Mix without ES6 compilation using babel. Since Electron is running on Node, there is no need to compile to ES5.
Looking through Laravel Mix's API, there seems to be no method that provides this functionality.
I created a .babelrc file with the following contents:
{
"plugins": [ ],
"presets": [ ]
}
However, after running npm run dev, the output file clearly has been transpiled to ES5.
According to line 248 of src/config.js in Laravel Mix's source code, the options taken from .babelrc overwrite the default options defined on line 220.
Laravel Mix Version: 1.7.2
Is there something I'm missing? Or does Laravel Mix simply not support this functionality?
Thanks in advance.
I had similar problem and it wasn't easy to find, but here's the solution:
mix.babelConfig({
only: ["./some-fake-dir"]
})
As the Babel documentation says:
Use it to explicitly enable Babel compilation of files inside the src
directory while disabling everything else.
So by entering some fake dir, you turn off the compilation all together.
More on this option here: https://babeljs.io/docs/en/options#only
As in Material Component Web's example, I want to be able to import SCSS from my node_modules like this:
#import '#material/elevation/mdc-elevation';
However, I'm getting this error message when trying to run the webpack build:
File to import not found or unreadable: #material/elevation/mdc-elevation.
#import './~/#material/elevation/mdc-elevation.scss'; doesn't work either.
I'm pretty sure the issue is somewhere in my webpack config, but I can't figure out where.
What did they do in Material Components Web's Vue.js example in order to make it work?
Here's my npm-debug.log in case you need it.
And here's the corresponding Git repository: sk22/spg-tinf-sem03/proj01
Thanks in advance!
Edit: I want to be able to import the scss files, not the compiled css.
Got it.
here's a part of my webpack 2 config's module.rules:
{
test: /\.(sass|scss)$/,
use: [
'style-loader',
'css-loader',
{
loader: 'sass-loader',
options: {
includePaths: [path.resolve(__dirname, 'node_modules')],
},
},
],
},
So what did I do wrong?
My options object was placed in the rule directly, not the loader.
The old webpack config rule looked like this:
{
test: /\.(sass|scss)$/,
use: ['style-loader', 'css-loader', 'sass-loader'],
options: { includePaths: [path.resolve(__dirname, './node_modules')] },
},
See the difference? Instead of the 'sass-loader' string, I extended it to an object, containing the loader name and the options object, because the options only apply to the sass-loader.
(You could also drop the path.resolve and only write 'node_modules', but it might be safer to leave it.)
Check out this documentation page for further information. https://webpack.js.org/configuration/module/#rule-use
Without that loader, you must prefix each import with a ~, which webpack converts to the node_modules folder, at least with my previous configuration.
But this will break 3rd party SCSS frameworks like Material Components Web, because they use #import statements without a leading ~ themselves, for example here.
Inside .vue files
This will not work in .vue files, as vue-loader just uses sass-loader without any options by default.
So if you want that to work, you probably need to make use of vue-loader's own options, as described in its documentation.
(I'm unable to get it to work for some reason I don't know...)
EDIT: Webpack has a section on sass-loader now: https://webpack.js.org/loaders/sass-loader/ also mentioning includepaths.
I had the same issue with #material and Vue. I managed to resolve the problem without adjusting the use property directly.
Solution
Step 1: First create a default Vue 2.1 project using the CLI.
Your file structure will have a ./build directory.
Step 2: Open the file 'utils' you will see a cssLoaders() function which returns an object/map for the languages vue-loader supports.
You will see both sass and scss in that map.
Step 3: Change the values of sass and scss to:
sass: generateLoaders('sass', {
indentedSyntax: true,
includePaths: [path.resolve(__dirname, '../node_modules')]
}),
scss: generateLoaders('sass', {
includePaths: [path.resolve(__dirname, '../node_modules')]
}),
Step 4: Go to the .vue file you're using and change the lang attribute in your <style> element to either sass or scss.
Step 5: After you've done that go to the terminal/console and install sass-loader with:
npm install sass-loader node-sass webpack --save-dev
Step 6: Then run npm run dev and it should work.
Why does this work?
Libraries
I dug around a bit and it turns out sass-loader uses node-sass which has some options such asincludePaths one mentioned by #22samuelk. IncludePaths tells node-sass or rather the underlying library LibSass to include sass files from that directory/path.
Vue
Sass-loader options
By default Vue expects your assets to be in your projects src/assets folder (correct me if I'm wrong). You can however use ~ to indicat you want to start at your projects root which would look like `~/node_modules/#material/smth/mdc-smth.scss.
Now if you want your sass-loader to use something other than those options you need to explicitly tell them.
Hence path.resolve(__dirname, '../node_modules' since the utils file is in ./build and you need to use an absolute path for sass-loader to understand where to look.
Vue-loader config
This is not really specific to the question but the vue-loader config defined in vue-loader.conf.js works as follows:
It uses the map returned by cssLoaders() to build the loaders expected by webpack.
The returned map ({key:value}) is then used by providing key as a file extension used in test: for a loader object. The value is used as the loader object.
Which would like like this:
{
test: /\.(key)$/,
use: [
{
loader: '//ld//-loader',
options: {
/*Options passed to generateLoaders('//ld//', options)*/
},
},
],
}
Where key is the file extention. In this case that would be either sass or scss. And //ld//is the loader you which to use. Which is shown in Step 3 as 'sass'.
Hopefully this clears up some stuff. Took me a while because I just started using Vue.