Same issue here using Apple Swift Packages for management. Not a big fan of this solution, but it worked for me in at least one app. I removed all packages from my project and attempted to re-add and like others here got the hang up on "preparing to validate." Since that didn't want to work I just reinstalled via cocoapods. Everything is back up and running without any issues. Granted I did not edit any of my pod code files so reinstalling wasn't a major problem. Best of luck all.