xcrun error in instrument

Question

I am trying to launch a react native app on simulator and when I run this command in terminal npm run debug:ios I keep getting this error

Command failed: xcrun instruments -s
xcrun: error: unable to find utility "instruments", not a developer tool or in PATH

I though my problem is that I don't have the xcode command line installed, but I do.

What is this problem?

Answer 1

This fixed it for me: http://www.seanbehan.com/how-to-fix-xcrun-error-unable-to-find-utility-instruments-not-a-developer-tool-or-in-path/

You need to launch XCode and agree to the terms first. Then go to Preferences > Locations and you'll see a select tag for Command Line Tools. Click this select box and choose the version of XCode you'll be using.

After this you can go back to the command line and run react-native run-ios