I developping my react native app on my tablet (Samsung Tab Active) for 2 years. I don't have any problems, I use usuals lines :

adb reverse tcp:8081 tcp:8081 then npm run start

I bought a new phone (Samsung Galaxy Flip), the app is installed (with android studio) but the metro server don't work :

No apps connected. Sending "reload" to all React Native apps failed. Make sure your app is running in the simulator or on a phone connected via USB.

Anybody know what i missed ?

Thanks for your help :)

I developping my react native app on my tablet (Samsung Tab Active) for 2 years. I don't have any problems, I use usuals lines :

adb reverse tcp:8081 tcp:8081 then npm run start

I bought a new phone (Samsung Galaxy Flip), the app is installed (with android studio) but the metro server don't work :

No apps connected. Sending "reload" to all React Native apps failed. Make sure your app is running in the simulator or on a phone connected via USB.

Anybody know what i missed ?

Thanks for your help :)

• android
• react-native

• Have you turned on Dubugging mode on your phone ? – Ahmad Gulzar Commented Mar 2 at 18:19

1 Answer 1

Please follow this procedure to make sure you are not missing any steps

1. Turn ON DEV and debugging mode on your phone
2. Connect it your PC a popUp will appear only first time to Allow USB Debugging? Press Always allow and OK

3. Make sure your PC and Mobile is connected to the same Network(WIFI)
4. Now run npx react-native run-android