Uncaught ReferenceError: ReactDOM is not defined with bundle.js

I am having an issue trying to load my application. I am new to React and cannot figure out what the problem is. Below are two console errors I am getting. Can someone lend a hand? I am happy to add code to this post but I am not sure what file you would need to see. I have tried going through many SO posts but a am referencing ReactDOM correctly (case wise) in my code from what the posts say. Thanks for the help!

Failed to load resource: the server responded with a status of 404 (Not Found)


Uncaught ReferenceError: ReactDOM is not defined
    at eval (eval at <anonymous> (bundle.js:6797), <anonymous>:85:3)
    at Object.<anonymous> (bundle.js:6797)
    at __webpack_require__ (bundle.js:20)
    at eval (eval at <anonymous> (bundle.js:1151), <anonymous>:21:16)
    at Object.<anonymous> (bundle.js:1151)
    at __webpack_require__ (bundle.js:20)
    at eval (eval at <anonymous> (bundle.js:47), <anonymous>:11:15)
    at Object.<anonymous> (bundle.js:47)
    at __webpack_require__ (bundle.js:20)
    at bundle.js:40

Without knowing your setup it's difficult, but the app is either not importing the react-dom module, or it's not installed at all.

Are you using a boilerplate?

Check your package.json.

Is there an entry similar to "react-dom": "^15.5.3" ?

If so, just do an npm install in that directory.

Now check: does the module in which you'd like to use ReactDOM import react-dom?

const ReactDOM = require('react-dom');
// OR
import ReactDOM from 'react-dom';

If all this is done, your next step might be to check your webpack build script.

Not much else to say without knowing how you've set up the project.

Cheers.

Uncaught ReferenceError: ReactDOM is not defined · Issue #371 , getElementById('example') ); }, 500);. Its saved inside /app/assets/javascripts/​components/test.js.jsx file. Rails 4.2.4 With Ruby 2.2  The change from a single JS package to many modules has complicated the process for building React.js into the gem code, see full discussion here: #365 I'm on the road this week so I haven't had a chance to find a new way yet!

Check your entry file (which should be defined inside your webpack.config.js). Did your forget to put import ReactDOM from 'react-dom?

ReactDOM is not defined · Issue #480 · reactjs/React.NET · GitHub, ReactInitJavaScript to work. Something like this in the body, before the init is called: <script src="./bundle.js"></  I also added public/dist/turbo-react.min.js as described here and also added //= require components line in application.js as described in this answer to no luck. Additionally, var React = require ('react') gives the error: Uncaught ReferenceError: require is not defined.

check your version of nodejs, if it is in

version 10 use import ReactDOM from 'react-dom';

if it is in version 8 use const ReactDOM = require ('react-dom');

ReactDom is not defined - Programming Help, const JSX = ( <div> <h1>Hello World</h1> <p>Lets render this to the DOM</p> </​div> ); // change code below this line ReactDom.render(JSX,  Re: Uncaught ReferenceError: bundle is not defined on Magento 1.4.1.1 Sounds like there might be something missing from one og your product view template files. If you view the source of your bundled product page can you find a line like:

Uncaught ReferenceError: ReactDOM is not defined - html, public/dist/bundle.js" }, plugins: [ new WebpackNotifierPlugin() ], module: I met this error : Uncaught ReferenceError: ReactDOM is not defined when type  webpack && webpack ./client/client.js dist/bundle.js \ && webpack-dev-server --progress --color. You need to run webpack again since if some sources in the library change you will get the last changes then in the dist/bundle.js package (of course you can add like a grunt file watch task for this). webpack-dev-server will run the server then.

Uncaught ReferenceError: ReactDOM is not defined, Uncaught ReferenceError: ReactDOM is not defined. Posted by: Its saved inside /app/assets/javascripts/components/test.js.jsx file. Rails 4.2.4  Question: Console is giving me: Uncaught ReferenceError: Navlink is not defined Why do I only get the green background? And how come it is not defined? I have followed the instruction step by step, even checked if my code matches up to that of the tutorial, and it does.

Manatee Mistakes: Uncaught ReferenceError: ReactDOM is not , Uncaught ReferenceError: ReactDOM is not defined. I made this https://cdnjs.​cloudflare.com/ajax/libs/react/15.6.1/react-dom.js. Doing just  CRA 2 breaks the use of mapbox-gl: Uncaught ReferenceError: _typeof is not defined #5267