If your project is a standard React Native project created using react-native init (it should have an ios/android directory), then follow these installation instructions:
If you already have this installed, or are using create-react-native-app, this isn't necessary.
npm i react-native-vector-icons --save && react-native link react-native-vector-icons
If you have any issues with icons not working or installation of React Native Vector Icons, check out their installation guide here
yarn add react-native-elements
or
npm i react-native-elements --save