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I am working on a React Native project with Expo for Android, using an Android emulator. However, when I use the development build, the emulator automatically opens my app. But when I try to restart it by pressing r, I get this message:

warn 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.

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  • it means the connection between expo and the simulator got lost, sometimes because of changes on network or because of timeout, just rerun the app again by pressing a for android or i for ios Commented Mar 24, 2024 at 5:37

1 Answer 1

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For persistent occurrence of this error, you may need to clear your cache

expo start -c
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