How do I diagnose and fix 'This app has crashed because it attempted to access privacy-sensitive data without a usage description' in Swift/Xcode?

When you encounter the error 'This app has crashed because it attempted to access privacy-sensitive data without a usage description', it typically means that your app is trying to access certain sensitive data, such as the user's location, camera, or contacts, and you have not provided a corresponding usage description in your app's Info.plist file. This is a requirement for iOS apps to ensure user privacy.

Fixing the Issue

To resolve this issue, follow these steps:

1. Open your Xcode project, and locate the Info.plist file.
2. Add a new key for the specific privacy-sensitive data you are attempting to access. Common keys include:
   • NSCameraUsageDescription for camera access.
   • NSLocationWhenInUseUsageDescription for location services.
   • NSPhotoLibraryUsageDescription for accessing the photo library.
   • NSContactsUsageDescription for access to contacts.
3. Provide a user-friendly description for each key that explains why your app needs access to that data.
4. Build and run your app again to ensure that the crash is resolved.

Example Usage in Info.plist

    <key>NSCameraUsageDescription</key>
    <string>This app requires access to the camera to take photos.</string>
    <key>NSLocationWhenInUseUsageDescription</key>
    <string>This app needs your location to provide personalized content.</string>
    <key>NSPhotoLibraryUsageDescription</key>
    <string>This app requires access to your photo library to upload images.</string>
    <key>NSContactsUsageDescription</key>
    <string>This app requires access to your contacts for synchronization purposes.</string>