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How to change listening port in react native?

If you are using react native android and having face issue packager can’t listen on port than use below command to change port:

react-native start –port 9987

OR go into the file path

my_app\node_modules\react-native\local-cli\server\server.js and chnage port here:

 module.exports = {
      name: 'start',
      func: server,
      description: 'you are starting the webserver',
      options: [{
        command: '--port [number]',
        default: 9987,
        parse: (val) => Number(val),
      }

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