'React-Native metro not running

i'm new to react native and i've been following https://reactnative.dev/docs/environment-setup and in the 'Start Metro' step, npx react-native start doesn't work pls help

Solution 1:^[1]

Please make sure you installed Node first with Homebrew:

brew install node
brew install watchman

Try yarn start or npm start after you installed node.

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Solution	Source
Solution 1	fransoudelaar