I am following the tutorial on the official React Native website.

Using the following to build my project:

react-native run-ios

I get the error:

Found Xcode project TestProject.xcodeproj
xcrun: error: unable to find utility "instruments", not a developer   
tool or in PATH

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

Although, when I run the app from the .xcodeproj, everything works fine.

Any suggestions?

15 Answers
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