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Una página web simple de reactjs con una cuadrícula aparece como una página en blanco aunque no hay errores en mi terminal

Actualmente estoy tratando de aprender a reaccionar js usando un tutorial que encontré. Entonces, mientras sigo, la página web no parece ser la misma para mí. A pesar de que seguí cada uno de sus pasos.

Simplemente muestra una página en blanco vacía.

Aquí está mi código:

 import React, { Component } from 'react'; import Grid from '@mui/material/Grid'; class LoginPage extends Component { constructor(props) { super(props); this.state = { } } render() { return ( <Grid container> <Grid item xs={3}> ffdiaj </Grid> <Grid item xs={6}> fdslkafj </Grid> <Grid item xs={3}> fdsaife </Grid> </Grid> ); } } export default LoginPage;
 import './App.css'; import LoginPage from './Components/LoginPage/LoginPage'; function App() { return ( <div className="App"> <LoginPage /> </div> ); } export default App;

Mi terminal no muestra ningún error:

 Compiled successfully! You can now view myinstagram in the browser. Local: http://localhost:3000 On Your Network: http://192.168.1.13:3000 Note that the development build is not optimized. To create a production build, use npm run build. assets by path static/js/*.js 2 MiB asset static/js/bundle.js 1.99 MiB [emitted] (name: main) 1 related asset asset static/js/node_modules_web-vitals_dist_web-vitals_js.chunk.js 6.89 KiB [emitted] 1 related asset asset index.html 1.67 KiB [emitted] asset asset-manifest.json 458 bytes [emitted] cached modules 3.05 MiB [cached] 405 modules runtime modules 31.4 KiB 16 modules ./src/Components/LoginPage/LoginPage.js 2.17 KiB [built] webpack 5.65.0 compiled successfully in 5011 ms

Cuando abro mi consola de Firefox, esto es lo que aparece como error .

about 4 years ago · Santiago Trujillo
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