Use Deep Link, occur error

[zhaoyiming0803]

I'm using Deep link refer to doc: https://reactnavigation.org/docs/deep-linking#setup-with-expo-projects.

• Install dependencies:

  {
  "dependencies": {
     "expo": "^49.0.13",
     "expo-linking": "~5.0.2"
  }
  }

• Configure my app.json

  {
  "name": "ReactNativeDemo",
  "displayName": "ReactNativeDemo",
  "expo": {
  "scheme": "mychat"
  }
  }

• import and use Deep Link

  
  import * as Linking from 'expo-linking'

// the following code caused an error to occur const prefix = Linking.createURL('/')

function App() { const linking = { prefixes: [prefix] }

return ( <NavigationContainer linking={linking} fallback={Loading...}> {/ content /} ) }

- error message in my ternimal, but compiler is successfull, error occur only running app in ios simulator
``` shell
Error: expo-linking needs access to the expo-constants manifest (app.json or app.config.js) to determine what URI scheme to use. Setup the manifest and rebuild: https://github.com/expo/expo/blob/main/packages/expo-constants/README.md, js engine: hermes

How should I solve this error???