I’ve been trying to connect React to my Phoenix project but continue to get an error. The error says Error in ./assets/js/app.jsx Module build failed (from ./node_modules/babel-loader/lib/index.js); SyntaxError: path -> app.jsx const HelloReact = () => { return <div>Hello World</div>; } error p…

Most likely a Babel problem indeed, as it seems it’s not transpiling JSX to JS. The Babel configuration is always giving me headaches, and right now I am not really sure, but isn’t babel.config.js supposed to replace .babelrc? If I am right about that, your babel.config.js will take precedence, and…

If you are new to react use the creat react app it works with npx and the guide can be found here. https://facebook.github.io/create-react-app/docs/getting-started Also this is very important https://reactjs.org/blog/2018/10/01/create-react-app-v2.html

const HelloReact = () => { return <div>Hello World</div>; } Is that your file? I think You miss this… import React from 'react'; Even if it is not visible, You need to import React before using this code <div>...</div> because it uses React.createElement() under the hood

Also this tutorial should offer you a complete introduction to react and babel config the right way. https://www.valentinog.com/blog/babel/

Hm I’ve been trying to look into babel.config.js and it doesn’t seem to be a requirement. I may be wrong but thank you for replying. Will continue to look about both files.

Thank you for replying. Actually, it isn’t my first time using React but every time I try to use it for a project, the initial setup is usually a headache when it comes to webpack. Thank you for providing those linkes. I will take a look especially the tutorial I hope will point me in the right dire…

I apologize for not copying the code exactly as what I wrote. That is my part that has mislead you. The entire file looks like this import css from "../css/app.css"; import "phoenix_html"; import React from "react"; import ReactDOM from "react-dom"; console.log("I'm getting hit"); const HelloRea…

I may be wrong, but isn’t the return block supposed to be wrapped with parens ie : return (<div>Hello react</div>); ?

Ok You do import React… This is how I did for a babel 7.4.3 and React 16.8 I use a babel.config.js with this inside module.exports = api => { api.cache(true); const presets = [ [ "@babel/preset-env", { targets: { edge: "17", firefox: "60", …

What happens if you add the "@babel/preset-env" and "@babel/preset-react" presets to the babel.config.js, and remove .babelrc entirely? It really looks to me like "@babel/preset-react" is just not applied, and you definitely do not need both a babel.config.js and a root .babelrc, so you can simpli…

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Connecting React with Phoenix

Questions & Help Questions

wolfiton July 12, 2019, 4:46pm 5

Also can you post your package.json file to see what packages you installed?