App wouldn't start with old code structure.

Hi, @kanzitelli you have saved me from lot of troubles and i’m very grateful to u. Thank you for maintaining this starter kit. Here is my problem. After upgrading to the latest changes i can’t use this old following code structure. if i convert the old way to new way using ‘rnn-screens’ it works. but i have huge code base and conversion to ‘rnn-screens’ is not option for me right now. is there anyway i can run the app with the old following structure?

The error message says:

Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication). A frequent cause of the error is that the application entry file path is incorrect. This can also happen when the JS bundle is corrupt or there is an early initialization error when loading React Native., js engine: hermes

Possible Unhandled Promise Rejection (id: 0): TypeError: Cannot read property ‘screens’ of undefined TypeError: Cannot read property ‘screens’ of undefined

index.js

import 'react-native-gesture-handler';
import { Navigation } from 'react-native-navigation';
import { start } from './src/app';

Navigation.events().registerAppLaunchedListener(start);

./src/app

import {hydrateStores} from './stores';
import {initServices, services} from './services';
import {configureDesignSystem} from './utils/designSystem';

export const start = async (): PVoid => {
  const {nav, Noti} = services;

  // 1. hydrate stores
  await hydrateStores();

  // 2. configure design system
  configureDesignSystem();

  // 3. init services
  await initServices();

  // 4. start app
  nav.start();
};

./src/services/navigation/index.ts

start = async (): PVoid => {
    const token = await AsyncStorage.getItem('@token');
    token ? await this.startThreeTabsApp() : await this.startOneScreenApp();
    await this.getConstants(); // needs to be called after setRoot()
  };

private startOneScreenApp = async (): PVoid => {
    await Navigation.setRoot(Root(Stack(Component(screensLayouts.ScreenOne))));
  };

  private startThreeTabsApp = async (): PVoid => {
    await Navigation.setRoot(
      Root(
        BottomTabs([
          Stack(Component(screensLayouts.HomeScreen)),
          Stack(Component(screensLayouts.ScanScreen)),
          Stack(Component(screensLayouts.MailScreen)),
        ]),
      ),
    );
  };

[kanzitelli]

@Yasir5247 great to hear! probably it was a cache error or something. then I’m closing the issue.

[kanzitelli]

Hi @Yasir5247! Well, it looks like you’ve done everything correct, but the script still can not be run because of the wrong directory. As I remember, this error Cannot run program "/home/expo/Android/Sdk/cmdline-tools/latest/bin/sdkmanager" comes from React Native Navigation app’s build.gradle file. You can check it here - https://github.com/wix/react-native-navigation/blob/master/lib/android/app/build.gradle#L176. What I would recommend is to change that directory manually to yours from node_modules of your project. And if that works, just create a patch file which will change it.