Unable to resolve "../../App" from "node_modules/expo/AppEntry.js"

[jimbarritt]

HI,

I've been struggling all day with getting the basic app generating and working and have managed to get to the point where yarn start and shadow-cljs watch seem to function well but when I try to launch the app on a phone, I get Unable to resolve "../../App" from "node_modules/expo/AppEntry.js"

From what I can tell this is something to do with node_modules/expo/AppEntry.js hardcoding a path to look for App.js in the root dir but the template has not generated this.

I noticed that in app.json the following is set:

...
 "entryPoint": "./build/index.js",
...

When I run yarn start

I get

iOS Bundling failed 9ms
Unable to resolve "../../App" from "node_modules/expo/AppEntry.js"
iOS Bundling failed 12ms
Unable to resolve "../../App" from "node_modules/expo/AppEntry.js"

After I try to connect on the phone.

I can see that AppEntry.js is hard coded to load an App file from the root:

import registerRootComponent from 'expo/build/launch/registerRootComponent';

import App from '../../App';

registerRootComponent(App);

There were a couple of errors prior to this which I managed to fix by

Setting the react-native version in package.json to

"react-native": "^0.72.6",

cd ${app-dir}
yarn add expo
yarn expo install react-native-gesture-handler react-native-reanimated react-native-screens react-native-safe-area-context @react-native-community/masked-view
yarn expo install --fix

Any help welcome.

[jimbarritt]

By upgrading the react versions I am able to get past this, and then I ran into : Unable to resolve "create-react-class" from "build/index.js"

React has deprecated this (see here )and it got moved to a separate dependency which you then have to add:

yarn add create-react-class

It works now. Also getting issues with The global expo-cli package has been deprecated I. managed to get past this at some point but its back now will continue to investigate

[jimbarritt]

This is because you no longer need expo-cli as a dependency so this can be removed from the package.json But when you do this a whole heap of other things break