I experienced this same error and have struggled to fix this for 5 days. I am using Expo SDK 51. The solution in this link helped me to resolve the error: registerRootComponent.

The Expo SDK requires a different way to registerRootComponent.

import { registerRootComponent } from 'expo';
import { View } from 'react-native';
function App() {

   return <View />;

}

registerRootComponent(App);