After upgrading to Xcode 14 I can no longer run on my iPhone 12 running iOS 15.7. It appears the 15.7 SDK is missing. In fact there are no iOS 15 SDKs anymore. I've rebooted both my iPhone and Mac Pro numerous times without success. So far Xcode 14 is a disaster. Thanks Apple!
Note: I had to delete and re-install Xcode from App Store after the upgrade from the developer download broke all Swift Package loading. How do I re-install iOS 15.x SDKs?