Xcode fails without specifying and errors

Question

All of a sudden my project fails to build in Xcode. If I look at the log I see all the needed dependencies being built, and then I get a strange error:

Verify fi         


        

Answer 1

Same issue when added watchOS target inside iOS app, using Xcode 11.1 with SwiftUI:

• Go to menu Xcode / Preferences / Locations
• Open Derived Data folder in Finder clicking on the arrow next to /Users/yourUserName/Library/Developer/Xcode/DerivedData
• Locate your app Derived Data folder and delete it
• Menu Product / Clean Build Folder

You should be able to compile again.