Getting "undefined is not an object (evaluating '_react2.proptypes.string')" after importing react-native-prompt

Question

I am using the newest version of NPM, the version of exp is 57.0.0. When I add to my code in render method, I get an error "undefined is not an object (evaluating '_react2.proptypes.string')". Without adding everything works perfect.

Both Prop-Types and React-native-prompt are installed.

I have already tried to write import Prompt from 'prop-types'; instead of writing import Prompt from 'react-native-prompt'; but then I am getting the error that hasn't been found in Prop-Types.

Any suggestions on how to fix it? Thank you

Can you provide some of your code samples? Also, you say you use react-native-prompt, is is some third party lib or the builtin RNT component? — Lukasz
– Lukasz, Commented Oct 22, 2018 at 12:02

Ali Radmanesh · Accepted Answer · 2018-10-22 13:15:11Z

1

PropTypes moved into separate package. Use prop-types package.

react-native-prompt use outdated style of prop-types so you have to manually solve it.

go to /node-modules/react-native-prompt and edit main files in this way:

import { PropTypes } from 'react'

the above line is incorrect and must be like this:

import PropTypes from 'prop-types'

You have to import PropTypes in this way.

More info here.

Note: React.PropTypes has moved into a different package since React v15.5. Please use the prop-types library instead. We provide a codemod script to automate the conversion.

answered Oct 22, 2018 at 13:15

Ali Radmanesh

2,55624 silver badges26 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

DrueTrue Over a year ago

Thank you! That helped me :)

Collectives™ on Stack Overflow

Getting "undefined is not an object (evaluating '_react2.proptypes.string')" after importing react-native-prompt

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related