iOS10: App crashes when it wants to access user's data (Photos, Contacts, ...)

[manuroe]

We must add ***UsageDescription to Info.plist to all requested permissions

The log says:

This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSContactsUsageDescription key with a string value explaining to the user how the app uses this data.

or

[access] This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSPhotoLibraryUsageDescription key with a string value explaining to the user how the app uses this data.