When running the ultimateportfolio on my iPhone I get this error. Fatal error: Fatal error loading store: An error occurred during persistent store migration.

If I run it through the simulator it works fine. Any ideas what I've done wrong?

I managed to undo that error, but this was the original error I was trying to fix.

Showing Recent Messages The file "/Users/garywatson/Documents/Xcode/SwiftUI/Projects/UltimatePortfolio/UltimatePortfolio/UltimatePortfolio.entitlements" could not be opened. Verify the value of the CODE_SIGN_ENTITLEMENTS build setting for target "UltimatePortfolio" is correct and that the file exists on disk.

App builds fine when target is simulator, but gets this error when building for my connected iPhone.

Found on SO :

To fix it I went into "Build Settings" expanded the "Signing" tab and removed the line saying "Code Signing Entitlements"