Cannot read property 'number' of undefined

[jeffreyabarrios]

When adding the repository with yarn add react-modal-dialog, just by importing it gives this error, as if the actual _react object is undefined within the library. Any idea of why this happens?

Edit: I believe its in the way proptypes is imported.

[fabricioasap]

Yes, proptypes have changed in React 16 and the plugin no longer works

[abeikverdi]

Any updates on this?

[Alexis-Bize]

Had the same issue and created a workaround with react (v16) and the prop-types package. Not the best one, but it works:

require('react').PropTypes = require('prop-types');

[victorteokw]

still wont work

[Alexis-Bize]

@zhangkaiyulw Are you using webpack? If so:

entry.js (used in webpack):

require('react').PropTypes = require('prop-types');
require('./client.js');

client.js (Also works with requireofc)

import React from 'react'
import ReactDOM from 'react-dom'
// ...
ReactDOM.hydrate(...)