Cannot resolve symbol ReactApplication/ReactNativeHost

Question

I have a react native running perfectly on iOS but does not compile in Android studio due to import issues in MainApplication and MainActivity. I followed the React Native F

Answer 1

It happened to me too after detach my react-native project from Expo.

In MainApplication I had "error Cannot resolve symbol" for these imports:

import com.facebook.react.ReactApplication;
import com.facebook.react.ReactNativeHost;

in my package.json file I used:

"react-native": "https://github.com/expo/react-native/archive/sdk-29.0.0.tar.gz",

the problem was that the android can't find the directory for node_modules like that.

in order to fix the issue I had to:

1. change it to :

   "react-native": "^0.57.8",

2. delete node_modules file

3. run npm install
4. delete .gradle folder from android project and sync project.

That's what solved the problem for me. Hope I helped.

Answer 2

I solved it by upgrading react-native, react-native-cli, gradle plugin to last version