My update to 13.2 happened this morning via accepting prompt to update Xcode tools. The day prior my app compiled. Today get missing package error. Clearing package caches didn't work. In the end, the Apple solution below worked. I downloaded 13.2 from the developer site. After decompressing the monster (32GB) I moved the Xcode App from Downloads to Applications selecting the option to REPLACE what was there. On first build I got a different package error but also noticed a warning to update project settings. In for a penny, in for a pound, I went ahead and let Xcode update the project settings. Then I tried again. This time the app built successfully. So in my case it was a combination of a complete replacement of Xcode 13.2 and updating my project settings as recommended by Xcode.
igeocacher
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