Having difficulty incorporating external SASS styles into my React.js project

In most of my projects, I follow a similar process for importing SASS styles. First, I create my react app and then install SASS using the command npm install node-sass. Next, I import my SASS file into my app components as shown below:

import React from "react";
import { ProvideAuth, useAuth } from "./use-auth.js";
import { BrowserRouter as Router, Switch, Route, Link } from "react-router-dom";
import './test.scss';

function App() {
  const auth = useAuth();

  return (
    <ProvideAuth>
      <Router>
        <nav>
          <div>
              <Link to='/'>Home</Link>
              <Link to='/about'>About</Link>
          </div>
          <div>
              <button onClick={() => auth.signin()}>Sign In</button>
              <button onClick={() => auth.signout()}>Sign Out</button>
          </div>  
        </nav>

        <Switch>
          <Route exact path="/">
            home
          </Route>
          <Route path="/about">
            about
          </Route>
        </Switch>

      </Router>
    </ProvideAuth>
  );
}

export default App;

The SASS file 'test.scss' is located in the same folder as App.js. The contents of this SASS file are very basic for testing purposes:

nav{
    display: flex;
    background: blue;
}

Although the project compiles without any errors, none of my styles are applied. Below is the package.json for my project:

{
  "name": "wally",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@testing-library/jest-dom": "^5.14.1",
    "@testing-library/react": "^11.2.7",
    "@testing-library/user-event": "^12.8.3",
    "firebase": "^8.7.1",
    "node-sass": "^6.0.1",
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "react-router-dom": "^5.2.0",
    "react-scripts": "^1.1.5",
    "web-vitals": "^1.1.2"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  }
}

Answer №1

While I don't have a concrete solution to my initial question, I ended up resolving the issue by rebuilding the project and everything started working smoothly again. It was essentially like turning it off and on again.

After looking at some related queries, I noticed that some users were facing problems integrating sass with react-router. Although I wasn't sure if this was directly relevant to my problem, reinstallation of all components ultimately fixed the issue for me.

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