getRootIDs is not defined in ReactComponentTreeHook.js

[tomcardoso]

Just started running into this bug today, everything was going smoothly before then. Only started happening after I updated to 15.4.0.

When I do import React from 'react';, this error gets thrown on the page when I try to use ReactDOM to render something to the DOM. Here's my code:

import React from 'react';
import ReactDOM from 'react-dom';
import App from './main/App';

ReactDOM.render(<App />, document.querySelector('.wrapper'));

I'm using React 15.4.0 and ReactDom 15.4.0, and bundling everything with Rollup and Buble.

Here's a screenshot of what Chrome tells me is happening:

[gaearon]

Can you reproduce this without Rollup?

[tomcardoso]

Not easily — I'm not sure I know of any code playgrounds that do ES6-style module imports… Any ideas?

FWIW, this (obviously) works: https://jsfiddle.net/yvoy2g3x/

It's very possible that this is some side-effect of ES6-style module bundling. I tried replacing Buble with Babel, same problem.

[gaearon]

Might be a Rollup bug then?

[jbt]

I'm seeing this too with rollup, I believe it's a rollup bug trimming too much code from the output - I opened rollup/rollup#1113 over there for the same issue

[tomcardoso]

Ah, sweet. Closing, then.

[LinusU]

This could be fixed here as well though, declaring the same variable multiple times in the same scope doesn't seem that clean...

Fix here: #8380 :)