The Sonoma replace bricked my Mac, so Apple needed to wipe it and I set it up from scratch. After putting in the dev instruments (Xcode 15.0.1 and utils), I loaded up a venture that builds positive on a Huge Sur Mac and located I can not even try and construct it.

As a substitute of the same old “scheme” selector in Xcode, I’ve a button that claims “iOS 17 not put in.” However my venture targets iOS 15+, and I haven’t got iOS 17 put in on the opposite Mac both, which builds it positive.

The one obvious place to keep up the put in SDKs and simulators is below Settings/Platforms. There you possibly can see iOS 17 by itself line (with a GET button), and MacOS and the watch OS and TV OS… and simulators. Should you press the + button within the lower-left, you possibly can set up different simulators however not SDKs. I put in iOS 16 and 15 simulators, however the issue stays.

Apple developer assist, admittedly non-technical, was stumped by this. I’ve arrange quite a few Mac growth methods and by no means encountered this drawback earlier than. You have at all times been in a position to goal older OSes with present Xcode.

Anyone know what is going on on right here?