從終端運行React Native App時出錯（iOS） - Error Running React Native App From Terminal (iOS)

問題：

I am following the tutorial on the official React Native website. 我正在關注官方React Native網站上的教程。

Using the following to build my project: 使用以下代碼構建我的項目：

react-native run-ios

I get the error: 我收到錯誤：

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. 雖然，當我從.xcodeproj運行應用程序時，一切正常。

Any suggestions? 有什麼建議？

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解決方案：

參考一： https://stackoom.com/question/2guER
參考二： Error Running React Native App From Terminal (iOS)