Hi, I've tried all the other solutions for getting rid of this error including deleting derivedData, Reset Package Caches, Update to latest Package Versions. I have never gotten this error before, XCode just updated on its own, and bam I'm getting these errors. I am developing a package and can't run my XCTests because of this internal error, this error also appears to be affecting my other packages but not my actual App projects.
Definitely an issue with Xcode 13.2 (done via the eternity that is an App Store install). See this thread: https://developer.apple.com/forums/thread/696504