[Bug]: When the SDK is added via Pod, the preview in Xcode fails to display.

[takashico]

Platform

iOS

Platform Version

iOS 18.3

Braze SDK Version

11.9.0

Xcode Version

Xcode 16.2.0

Computer Processor

Apple (M1)

Repro Rate

100 %

Steps To Reproduce

1. Add 'BrazeKit', 'BrazeUI', and 'BrazeLocation' via Pod.
2. Run the SwiftUI preview.
3. The preview fails to display.

Expected Behavior

We can preview the view in Xcode.

Actual Incorrect Behavior

The preview fails to display.

Verbose Logs

== PREVIEW UPDATE ERROR:

    FailedToLaunchAppError: Failed to launch example.test.BrazeTest
    
    ==================================
    
    |  [Remote] JITError
    |  
    |  ==================================
    |  
    |  |  [Remote] CouldNotLoadInputStaticArchiveFile: Could not load static archive during preview: /Users/xxxxxx/Library/Developer/Xcode/DerivedData/BrazeTest-xxxxxx/Build/Products/Debug-iphonesimulator/BrazeUI/BrazeUI.framework/BrazeUI
    |  |  
    |  |  path: /Users/xxxxxx/Library/Developer/Xcode/DerivedData/BrazeTest-xxxxxx/Build/Products/Debug-iphonesimulator/BrazeUI/BrazeUI.framework/BrazeUI
    |  |  
    |  |  ==================================
    |  |  
    |  |  |  [Remote] LLVMError
    |  |  |  
    |  |  |  LLVMError: LLVMError(description: "Duplicate definition of symbol \'$.Resources.o.__inits.0\'")

== SELECTED RUN DESTINATION:

    Simulator - iOS 18.2 | iphonesimulator | arm64 | iPhone 16 | no proxy

Additional Information

• If either 'BrazeUI' or 'BrazeLocation' is not included in the Pod, the preview works correctly.
• If added via SPM, the preview works without any issues.

[lowip]

Hi @takashico,

This seems to be an issue with CocoaPods handling of static libraries. As an alternative, you could try integrating our prebuilt dynamic XCFrameworks. You can find the relevant information here: https://github.com/braze-inc/braze-swift-sdk-prebuilt-dynamic

Best,

[takashico]

@lowip
Thank you for your response.
I see. As you mentioned, using SPM allows the preview to display without any issues.

I have one question.
I apologize for bringing up content from a different repository, but it's related, so I hope you don't mind.
I believe the same issue might occur when using the Flutter Braze SDK in a Flutter app.
(For example, it might affect projects that are using the "Add to App" feature.)
Is there a workaround for this scenario?

[lowip]

Hi @takashico,

The issue is likely the same with our Flutter SDK, it references our default Braze* pods (c.f. here).
For the time being, there is no easy way to replace those dependencies with our dynamic XCFrameworks.

Flutter is currently migrating away from CocoaPods to SwiftPM. We are planning to add support for SwiftPM in our Flutter SDK which should resolves this issue.

I'll make sure to raise this issue in our next meeting so that we can prioritize this work accordingly. We'll report back here once we have an update.

Best,