[BUG] Crash - StripeCardScan/UxModel.swift:128: Fatal error: Unexpectedly found nil while unwrapping an Optional value

[nickm01]

Summary

Using 23.1.1 when trying to present the CardImageVerificationSheet

Code to reproduce

let sheet = CardImageVerificationSheet(cardImageVerificationIntentId: "xxx", cardImageVerificationIntentSecret: "yyy")
        sheet.present(from: navigationController) { result in
            print("-=- result: \(result)")
        }

iOS version

15.6.1
iPhone 7 plus

Installation method

Pods - 23.1.1

SDK version

23.1.1

Other information

this is the line it crashes on:

return bundle.url(forResource: "UxModel", withExtension: "mlmodelc")!

Trace below

[eurias-stripe]

Hi @nickm01, thank you for reporting this, we are looking into it.

[jaimepark-stripe]

Thank you @eurias-stripe , I'll take it over from here :-)

Hello @nickm01!
Thank you for bringing this to our attention. Let me take a look into it. Just to be thorough, do you mind telling me what XCode version you are using?

[nickm01]

@jaimepark-stripe Xcode 14.0. Note also this did not crash with StripeCardScan 22.6.0. Thanks for looking into this!

[nickm01]

22.8.4 also has the same problem (22.6.0 works fine)

[jaimepark-stripe]

Apologies for the late reply @nickm01. I got sick so I was out for a few days. Picking this ticket back up! Will update you with progress.

[nickm01]

Hi @jaimepark-stripe... wondering about any updates thanks!

[jaimepark-stripe]

Hello @nickm01!
Can you take a look into Pods project folder Pods -> StripeCardScan -> StripeCardScan -> Resources -> CompiledModels and see if the file UxModel.mlmodelc exists?

[nickm01]

@jaimepark-stripe it appears to yes (22.8.4)

[jaimepark-stripe]

@nickm01
So I figured out what's going on. The MLModel class is an autogenerated class and the bundle it points to doesn't have the compiled ML model in its immediate directory. The compiled ML model is in another bundle, StripeCardScan.bundle, so it can't be found.

Let me put in a fix for this and will get it out by the next deploy. Let me ping you with the SDK version that contains the fix!

[nickm01]

Great thanks @jaimepark-stripe ... LMK

[nickm01]

@jaimepark-stripe when is the next deploy likely to be?

[jaimepark-stripe]

Earliest would be next Monday 2022-12-05 if I can get this PR ready, tested, and merged by EOD. I'm rapidly getting this PR out but in all likelihood will be out by the next deploy train 2022-12-12. What I can do is schedule a mid-week deploy next week to get it out earlier than 2022-12-12.

[jaimepark-stripe]

Hello @nickm01!
The new SDK version is slated to deploy today. I'll ping you in this thread when its out on Pods!

[jaimepark-stripe]

@nickm01
The new SDK version is out! https://github.com/stripe/stripe-ios/releases/tag/23.3.1
Let me know when you try out the new version. I will close this issue now.