warn No apps connected. ?

Expo SDK
1
  1. SDK Version: expo cli 5.0.3
  2. Platforms(Android/iOS/web/all): iOS

I installed a new project with typescript using:

npx react-native init MyApp --template react-native-template-typescript

When I run the app with yarn start nothing opens. It just offers:

To reload the app press "r"
To open developer menu press "d"

When I type ‘d’ I get:

warn No apps connected. Sending "devMenu" to all React Native apps failed. Make sure your app is running in the simulator or on a phone connected via USB.
info Opening developer menu...

And nothing happens, what am I doing wrong?

The old version opened metro in a browser but that doesn’t happen now? Is that correct? I have the simulator open but can’t open the app using expo on the simulator.

2

Hey @soggybag

It seems you used the vanilla react-native scaffold tool and not the expo one

Here is all the examples you can use

# Vanilla React Native
npx react-native init awesome-app
npx ignite-cli new awesome-app

# Expo-powered
npm i -g expo-cli
expo init
npx create-react-native-app
npx ignite-cli new awesome-app --expo

# Scaffold React Native libraries
npx create-react-native-library react-native-awesome-lib

To run yarn start you need inspect your package.json and check if you have a “start” script

3

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.