I recently started a new project in Symfony and I did everything here but it didn't help.
I work for first time with Symfony and this is my first project. I strictly follow the documentation and I am trying to add some CSS but its now working. I use Encore and downloaded Yarn as the documentation says to do. Below I will upload some of my code. It seems fine but it's not.
html.twig
<!DOCTYPE html>
<html lang="en" xmlns:th="http:thymeleaf.org">
<head>
<title>Events & People</title>
<meta charset="UTF-8">
{% block stylesheets %}
{#{% stylesheets '@AppBundle/public/build/app.css' %}#}
{{ encore_entry_link_tags('app') }}
<link src="/build/app.css" rel="stylesheet"/>
{#{% endstylesheets %}#}
{% endblock %}
</head>
webpack.config.js
var Encore = require('@symfony/webpack-encore');
Encore
// directory where compiled assets will be stored
.setOutputPath('public/build/')
// public path used by the web server to access the output path
.setPublicPath('/build')
// only needed for CDN's or sub-directory deploy
//.setManifestKeyPrefix('build/')
/*
* ENTRY CONFIG
*
* Add 1 entry for each "page" of your app
* (including one that's included on every page - e.g. "app")
*
* Each entry will result in one JavaScript file (e.g. app.js)
* and one CSS file (e.g. app.css) if you JavaScript imports CSS.
*/
.addEntry('app', './assets/js/app.js')
//.addEntry('page1', './assets/js/page1.js')
//.addEntry('page2', './assets/js/page2.js')
// will require an extra script tag for runtime.js
// but, you probably want this, unless you're building a single-page app
.enableSingleRuntimeChunk()
/*
* FEATURE CONFIG
*
* Enable & configure other features below. For a full
* list of features, see:
* https://symfony.com/doc/current/frontend.html#adding-more-features
*/
.cleanupOutputBeforeBuild()
.enableBuildNotifications()
.enableSourceMaps(!Encore.isProduction())
// enables hashed filenames (e.g. app.abc123.css)
.enableVersioning(Encore.isProduction())
//11111111111
// .enableSassLoader()
//
// // processes files ending in .less
// .enableLessLoader()
//
// // processes files ending in .styl
// .enableStylusLoader()
//11111111111
// enables Sass/SCSS support
//.enableSassLoader()
// uncomment if you use TypeScript
//.enableTypeScriptLoader()
// uncomment if you're having problems with a jQuery plugin
//.autoProvidejQuery()
;
module.exports = Encore.getWebpackConfig();
Here is an image of my tree of files:
If it's done right it should load the files from my /build/app.css, but it's not loading it.

public/build/app.cssis not empty right ? I didn't know the EncoreBundle changed so I don't know exactly what does thoseencore_entry_*functions. I'll take a look tonight. Also, why do you have astyle.scssfile in/public? And do you have any error in the network tab (browser dev console) ?