Can't find variable: Dimensions

Question

When I try to use:

const {width, height} = Dimensions.get('window');

On a react native component, I get a weird error never seen before:

Can't find variable: Dimensions

Have someone face this issue before?

"dependencies": {
"expo": "^22.0.0",
"react": "16.0.0-beta.5",
"react-native": "https://github.com/expo/react-native/archive/sdk-22.0.2.tar.gz"

},

Answer 1

Fix it... my mistake, I should import from react-native Dimensions.

import {Dimensions} from 'react-native';