I am trying to implement a monthly subscription as part of an in-app purchase.
I am using a combination of xcode/swift and RevenueCat to implement this feature. In implementing the code that runs when the user clicks the purchase button i get the error saying "Fatal error: NSArray element failed to match the Swift Array Element type Expected Package but found RCPackage".
Where the code for the purchase button click is highlighted. Code is "guard let package = offerings.all.first?.value.availablePackages.first ".
Sorry for the delay! Are you still seeing this issue? I’m not sure why Xcode is giving you that error. I just tried your code snippet and included a print, and the code ran and printed successfully:
What happens if you use [0] instead of .first? So instead of this:
guard let package = offerings.all.first?.value.availablePackages.first
Try this:
guard let package = offerings.all.first?.value.availablePackages[0]
I tried this on version 4.3.0 of the SDK using Xcode 13.3.1.
Here’s the code snippet I used so you can easily copy and paste to rule out any syntax errors:
Purchases.shared.offerings { offerings, error in guard let offerings = offerings, error == nil else { return } guard let package = offerings.all.first?.value.availablePackages.first else { return } print(package.identifier) }
