How to solve the "unrecognized command run-ios" error with React Native

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I was starting a new React Native project and I ran the command

npx react-native run-ios

to start it.

I got an error back with this line in it:

unrecognized command "run-ios"

I could not figure this out, until I realized I was running this command in my home folder.

Instead, this needs to be run from inside the project’s folder.

cd into the React Native project, and this error should go away and your React Native app should start successfully

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A quick guide to how I solved a confusing React Native error