Build fails with Xcode 16.0.1 - Swift compilation error in ViewAnnotationManager.swift

[maxxs7]

I'm experiencing a build failure when using @rnmapbox/maps with Xcode 16.0.1. The error occurs during iOS compilation and appears to be related to stricter Swift compilation rules in the newer Xcode version.

Is this a known compatibility issue with Xcode 16? Are there any workarounds ?

Thanks for your help !

Environment:
Xcode Version: 16.0.1 (Build 17A400)
@rnmapbox/maps Version: 10.2.6
MapboxMaps Version: 11.00.00 (tried various versions: 10.13.0, 10.14.0, 10.15.0, 10.16.0, 11.00.00)
React Native: 0.81.5
Expo SDK: 54.0.19
New Architecture: Enabled

Reproduction Steps:
Set up project with @rnmapbox/maps@10.2.6
Configure with MapboxMaps version 11.00.00 (or any version 10.13+)
Run npx expo run ios with Xcode 16.0.1
Build fails with Swift compilation error

ERROR DETAIL :

❌ (ios/Pods/MapboxMaps/Sources/MapboxMaps/Annotations/ViewAnnotationManager.swift:79:19)

77 | @available(*, deprecated, message: "Use ViewAnnotation")
78 | public var annotations: [UIView: ViewAnnotationOptions] {
> 79 |     idsByView.compactMapValues { [mapboxMap] id in
   |               ^ cannot convert return expression of type '[UIView : ViewAnnotationOptions]' to return type '[String : Any?]'
80 |     try? mapboxMap.options(forViewAnnotationWithId: id)
81 | }

[TheUntoldFable]

I'm using RNMapboxMapsVersion: '11.12.0' and the issue doesn't occur.
However, if you can't upgrade to this version, you can manually replace the annotations variable in Pods/MapboxMaps/ViewAnnotationManager.swift to:

    public var annotations: [String: Optional<Any>] {
       var result: [String: Optional<Any>] = [:]
        for (view, options) in idsByView.compactMapValues({ [mapboxMap] id in try? mapboxMap.options(forViewAnnotationWithId: id) }) {
           let key = String(describing: view)
            result[key] = options
        }
        return result
    }
    
  

[mfazekas]

Yes it's a known issue. Use current version of 11. So instead of 11.00.00 use 11.16.00 or 11.15.02

[maxxs7]

Okay I managed to find a solution, thanks for your help guys !