Reputation: 1375
After npm start
, the browser gives the error:
Failed to compile ./src/components/App/App.js Module not found: Can't resolve 'react-router-dom'.
React-router-dom has been added to the dependencies in npm and so has react-router and react.
Project has been created using the create-react-app myapp
cmd line. This is runned on a localhost, node server. I have an api and app folder inside my project folder. I have tried various things. Updated manually my package.json inside the app folder, reinstalled react-router-dom, delete the package-lock.json in the app folder and reinitialize it. My api folder holds nothing but node_modules, my api file, route.js, config.js, index.js and also a package.json and package-lock.json. I have tried the npm build command in my app folder. It just creates a 'build' folder which holds the same files as my public folder inside my app folder. I also tried running yarn add react-router-dom
.
//=========App.js file=========
//dependencies
import React, { Component } from 'react';
import { BrowserRouter as Router, Route } from 'react-router-dom';
//components
import Header from '../Header/Header';
import Footer from '../Footer/Footer';
import Home from '../Pages/Home';
import StudentOverview from '../Pages/StudentOverview';
import StudentDetails from '../Pages/StudentDetails';
import Management from '../Pages/Management';
import StudentAdd from '../Pages/StudentAdd';
import Exercise from '../Exercise/Exercise';
//includes
import '../../../public/css/kdg-fonts.css';
import '../../../public/css/normalize.css';
import '../../../public/css/responsive.css';
import '../../../public/css/say-my-name.css';
import '../../../public/css/style.css';
//Run
class App extends Component {
render() {
return (
<Router>
<div className="App">
<Route path='*' component={Header} />
<Route path='*' component={Footer} />
<Route exact path='/' component={Home} />
<Route exact path='/studenten' component={StudentOverview} />
<Route exact path='/studenten/:id' component={StudentDetails} />
<Route exact path='/beheer' component={Management} />
<Route exact path='/beheer/add' component={StudentAdd} />
<Route exact path='/oefenen' component={Exercise} />
</div>
</Router>
);
}
}
export default App;
//=========appfolder/package.json file=========
{
"name": "saymyname",
"version": "0.1.0",
"private": true,
"dependencies": {
"react": "^16.7.0",
"react-dom": "^16.7.0",
"react-scripts": "2.1.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
],
"devDependencies": {
"gulp": "^4.0.0",
"gulp-changed": "^3.2.0",
"gulp-clean-css": "^4.0.0",
"gulp-rename": "^1.4.0",
"gulp-sass": "^4.0.2",
"gulp-uglify": "^3.0.1"
}
}
Upvotes: 133
Views: 514117
Reputation: 227
Use the following command.
npm i react-router-dom
If not working.
npm i react-router-dom --save
Or.
npm i react-router-dom --force
Upvotes: 4
Reputation: 1049
In my case I use Typescript and I needed to install
npm i react-router-dom
AND
npm i @types/react-router-dom
Would also recommend closing and restarting your IDE after installing both
After restarting, both installations errors are gone.
Upvotes: 68
Reputation: 2224
The following command will resolve it:
npm install react-router-dom --save
You can use -S
(capitalized) instead of --save
if you want; they both do the same thing.
Upvotes: 170
Reputation: 69
Just install react-router-dom by using:
yarn add react-router-dom
npm install --save react-router-dom
as mentioned in this answer.
Upvotes: 6
Reputation: 1
If You have already installed the dependencies, checked the package.Json file for the react-router-dom dependency to be sure and it still doesn't work... In this case, make sure you import the packages from 'react-router-dom' in the index.js file:
import { BrowserRouter as Router, Switch, Route } from "react-router-dom"
Upvotes: 0
Reputation: 21
If you are using yarn instead of npm, this will help:
yarn add react-router-dom --save
Upvotes: 2
Reputation: 558
This error will be fixed by following these steps:
npm install --save react-router-dom
Put this in public/index.js
:
<script src="https://unpkg.com/react-router-dom/umd/react-router-dom.min.js"></script>
Upvotes: 14
Reputation: 1249
To install and configure react router. You first need to install the react-router-dom. Type the below command and run in your terminal,
npm i react-router-dom
If you are using react-router-dom v6. Then use the below code to configure react-router-dom along with layout,
App.jsx:
import './App.css';
import { BrowserRouter, Routes, Route } from 'react-router-dom'
import Home from './Components/Home'
import About from './Components/About'
import Layout from './Components/Layout'
function App() {
return (
<div className="App">
<BrowserRouter>
<Routes>
<Route path="/" element={<Layout />}>
<Route path="/" element={<Home />} />
<Route path="about" element={<About />} />
</Route>
</Routes>
</BrowserRouter>
</div>
);
}
export default App;
After configuring the react router in App.jsx. I am creating 3 components Home, About and Layout. Home and About are regular components and Layout component is to handle the Layout part in react-router-dom using Outlet
.
Layout.jsx
import { Outlet, Link } from 'react-router-dom'
export default function Layout() {
return (
<>
<Link to="/">Home</Link>
<Link to="/about">About</Link>
<Outlet />
</>
)
}
Home.jsx
export default function Home() {
return (
<>
<p>This is Home</p>
</>
)
}
About.jsx
export default function About() {
return (
<>
<p>This is About Us</p>
</>
)
}
Upvotes: 1
Reputation: 5119
"dependencies": {
"react": "^16.7.0",
"react-dom": "^16.7.0",
"react-scripts": "2.1.1"
},
These are the dependencies you use in your project, make sure to install react-router-dom
in to your react project.
Use
npm i react-router-dom
or yarn add react-router-dom
to install react-router-dom in to your project.
If you use typescript in your project, you have to install @types/react-router-dom
too
Use npm i @types/react-router-dom
or yarn add @types/react-router-dom
to install them.
Finally if you have successfully installed those libs in to your project, your package.json can be look like this,
"dependencies": {
"react": "^16.7.0",
"react-dom": "^16.7.0",
"react-scripts": "2.1.1"
......
"react-router-dom": "^x.x.x",
.....
"@types/react-router-dom": "^x.x.x",
},
Upvotes: 0
Reputation: 727
I resolved the issue when Docker and yarn involved with the error.
The key was to rebuild the Docker image after setting react-router-dom as the dev dependency, just like many answers here detail. The node_modules
folder inside docker container needs to update! If your docker-compose.yaml
parameter file does not remount node_modules
as a volume or otherwise update it, then this answer will not work for your project. Steps:
docker-compose down
in project root, or stop the daemon in Docker Desktopyarn remove react-router-dom
yarn add --dev react-router-dom
adds react-router-dom as dev dependencydocker-compose build
to rebuild the Docker imagedocker-compose up -d
for starting the devserver with daemonIn my case I was using Docker, with create-react-app
using Typescript template.
I'm using docker-compose
to up and down the containers with Docker daemon. If you don't use docker-compose
then you need to modify the container start/stop commands accordingly.
React Router was already installed and functioning correctly (yarn start
outside Docker container was not reporting any error). Docker contained frontend server was not functioning correctly.
Upvotes: 0
Reputation: 41
For this problem "Module not found: Can't resolve 'react-router-dom' in"
//I found the following solving
// using ES6 modules
import { BrowserRouter, Route, Link } from "react-router-dom";
if it is not working so you have to use the following that I used using CommonJS modules
const BrowserRouter = require("react-router-dom").BrowserRouter;
const Route = require("react-router-dom").Route;
const Link = require("react-router-dom").Link;
Upvotes: 4
Reputation: 387
You need to use --save
while installing "react-router-dom". This will ensure that package is stored in package.json
file as a dependency and when you try to build the solution on any another machine or on build server, it will take all the dependencies from package.json
file and install them.
If you want to install all dependencies on a fresh machine, run the command - npm install
Upvotes: -1