Are you using Xcodes.app and Expo and seeing this error when trying to run the app in the simulator?
› Opening on iOS...
✔ Xcode must be fully installed before you can continue. Continue to the App Store? … yes
Going to the App Store, re-run Expo CLI when Xcode has finished installing.The problem is that Xcodes installs apps with a version like: Xcode-15.2.0.app. Where the App Store installs it like: Xcode.app
All you need to do is let it know when you Xcode is with the following command:
sudo xcode-select -s /Applications/Xcode-15.2.0.app/Contents/Developer