[reactnative]Xcode needs to be installed (don't worry, you won't have to use it), would you like to continue

visual studio에서 react-native-app을 expo start 시 뜨는 경고문 해결방법 ! 

(이미 Xcode는 깔아놓은 상태) 

1. ) Open Xcode
2. ) go to preferences
3. ) go to locations tab
4. ) select an Xcode version in the select labeled "Command Line Tools"

후 재 실행하면 visual studio code접근 허용 문구가 뜨고 실행된다 !