In the ../Samples/Swift/DaysUntilBirthday/ folder, run the following
CocoaPods command.
pod install
Open the generated workspace:
open DaysUntilBirthdayForPod.xcworkspace
Run the DaysUntilBirthdayForPod (iOS) or DaysUntilBirthdayForPod (macOS)target.
In the ../Samples/Swift/DaysUntilBirthday/ folder, open the project:
open DaysUntilBirthday.xcodeproj
Run the DaysUntilBirthday (iOS) or DaysUntilBirthday (macOS) target.