Fix 'unrecognized command run-ios' in React Native

By Flavio Copes

Learn how to fix the unrecognized command run-ios error in React Native, which happens when you run npx react-native run-ios outside the project folder.

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