I update from Xcode 15 beta to Xcode 15.
I wanted to install the iOS package and got this error:
I already reinstalled Xcode.
There are already newer versions on the Apple site than what is shown here. Is that maybe where the error comes from?
Try the link https://download.developer.apple.com/Developer_Tools/iOS_17_Simulator_Runtime/iOS_17_Simulator_Runtime.dmg.
You can download it manually from here and install it using instruction from Installing and managing Simulator runtimes
After downloading, run:
xcrun simctl runtime add iOS_17_Simulator_Runtime.dmg