When i run a react native simple app using command.react-native run-android.Then i got an error "could not connect to a development server, although my packager is also run.
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3Possible duplicate of [\[react-native\]could not connect to development server on android](https://stackoverflow.com/questions/42064283/react-nativecould-not-connect-to-development-server-on-android) – Uzair A. Nov 22 '18 at 09:35
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There is a few things you can try to solve this.
From the React Native official docs (https://facebook.github.io/react-native/docs/troubleshooting) you could try to "terminate the process on port 8081" by running:
$ sudo lsof -i :8081
$ kill -9 <PID>
You will run the second command on all PIDs that are using port 8081 (this will terminate your emulator too).
Then, restart the emulator and in one terminal, run:
$ npm start
and on a second terminal:
$ react-native run-android
Hope this can help!
perotta
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i got this error when run 'kill -9 pid' ***zsh: parse error near `\n'*** – famfamfam Apr 15 '22 at 18:24
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Starting with Android 9.0 (API level 28), cleartext support is disabled by default.
John Zhang
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