"Content Not Ready" in Fortnite Save the World

If you see this error try these steps to resolve the issue:

1. Exit the Epic Games Launcher

2. Press Windows + R

3. Type "%localappdata%", and press Enter

4. Delete the entire EpicGamesLauncher folder

5. Delete the entire FortniteGame folder

6. Re-launch the Epic Games Launcher

7. Try running Save the World