/** * Copyright (c) 2015-present, Facebook, Inc. * All rights reserved. * * This source code is licensed under the BSD-style license found in the * LICENSE file in the root directory of this source tree. An additional grant * of patent rights can be found in the PATENTS file in the same directory. * * @providesModule throwOnWrongReactAPI * @flow */ 'use strict'; function throwOnWrongReactAPI(key: string) { throw new Error( `Seems you're trying to access 'ReactNative.${key}' from the 'react-native' package. Perhaps you meant to access 'React.${key}' from the 'react' package instead? For example, instead of: import React, { Component, View } from 'react-native'; You should now do: import React, { Component } from 'react'; import { View } from 'react-native'; Check the release notes on how to upgrade your code - https://github.com/facebook/react-native/releases/tag/v0.25.1 `); } module.exports = throwOnWrongReactAPI;