🛠️ (iOS) Not possible to build for simulator with react-native-vision-camera-barcode-scanner on iOS 26

[gabrielcalistro]

Prerequisites

• I have read and followed every applicable step in the Nitro Modules Troubleshooting guide.
• I have read the VisionCamera Troubleshooting guide and Installation guide.
• I did a clean build — deleted node_modules, ios/Pods, ios/build, and Xcode's DerivedData, then reinstalled.
• I searched existing build-error issues and found nothing matching.

Full build error output

CommandError: Failed to build iOS project. "xcodebuild" exited with error code 70.
To view more error logs, try building the app with Xcode directly, by opening /Users/gabrielcalistro/code/playground/camera/ios/camera.xcworkspace.

Command line invocation:
    /Applications/Xcode.app/Contents/Developer/usr/bin/xcodebuild -workspace /Users/gabrielcalistro/code/playground/camera/ios/camera.xcworkspace -configuration Debug -scheme camera -destination id=E1E63D1E-C0AD-4811-8CD7-C71579112CF3



2026-04-28 16:27:04.026 xcodebuild[21142:10723142] Writing error result bundle to /var/folders/43/zsfr27ys0q59ryf0199d07kh0000gn/T/ResultBundle_2026-28-04_16-27-0004.xcresult
xcodebuild: error: Unable to find a destination matching the provided destination specifier:
		{ id:E1E63D1E-C0AD-4811-8CD7-C71579112CF3 }

	Available destinations for the "camera" scheme:
		{ platform:macOS, arch:arm64, variant:Designed for [iPad,iPhone], id:00008132-001621DA11F0801C, name:My Mac }
		{ platform:iOS, arch:arm64, id:00008120-000834583EA1A01E, name:iPhone de Gabriel }
		{ platform:iOS, id:dvtdevice-DVTiPhonePlaceholder-iphoneos:placeholder, name:Any iOS Device }
		{ platform:iOS Simulator, id:dvtdevice-DVTiOSDeviceSimulatorPlaceholder-iphonesimulator:placeholder, name:Any iOS Simulator Device }
		{ platform:iOS Simulator, arch:x86_64, id:D2ED355C-95A1-4FF8-9B37-21FD19D69585, OS:18.6, name:iPhone 16 }
Build logs written to /Users/gabrielcalistro/code/playground/camera/.expo/xcodebuild.log

VisionCamera version

5.0.8

React Native version

0.81.5

React Native architecture

New Architecture (Fabric / bridgeless)

Expo?

Expo (managed, EAS Build)

Host macOS version

macOS 26.3 (Tahoe) on Apple Silicon (M4)

Xcode version

Xcode 26.4.1 (17E202)

iOS Deployment Target

15.5

CocoaPods version

1.16.2

Ruby version

4.0.3

Build target

Simulator

Package manager

npm

Reproduction repository

https://github.com/gabrielcalistro/vision-camera-issue

Additional context

Installing react-native-vision-camera-barcode-scanner seems to cause some problem in xcode scheme, making it impossible to build for simulator on iOS 26. I've tested on iOS 18.6 and android, works perfectly. If i remove the package, works too.
I didn't try to build for physical device.

Submission

• I pasted the full error output as text (not a screenshot).
• I wrote this report in my own words. I did not paste AI-generated summaries of the error.
• The reproduction repository I linked is public and reproduces the build error on a fresh clone. I understand the issue will be closed without one.

[mrousavy]

Hey - unfortunately that's an MLKit issue, they still haven't added arm64 Simulator support for MLKit. See: googlesamples/mlkit#810

What you can do;

1. Just change to x86 Simulators (native on Intel Macs, via Rosetta on Apple-chip Macs) - real physical devices work fine anyways
2. Exclude react-native-vision-camera-barcode-scanner from react-native/expo autolinking (react-native.config.js), and use the Object Output on iOS instead of MLKit - dropping the dependency entirely for iOS.

[jbcrestot]

FYI, it's working on older simulator iOS < 26.0

On my side, I didn't succed to change simulator to x86 ; so I did the exclude for iOS.

I wonder if it was a good idea to switch to MLKit for iOS, when most developers are on "Apple silicon" and Google seems to be abandoning the project.

[mrousavy]

I wonder if it was a good idea to switch to MLKit for iOS

I didn't switch to MLKit - I added it, as an additional way to run Barcode/QR code detection, which is fully aligned with how it works on Android. The iOS-native scanner is now exposed directly in V5, as CameraObjectOutput.

Google seems to be abandoning the project.

Where did you get this info from?

[AlixH]

Same here, working fine on iOS 18 simulator.

[rishik-simplifix]

Any Update regarding this?

[DanielAraldi]

Any Update regarding this?

I updated my iOS version from 12.0 to 15.5 and it works.

[rishik-simplifix]

Any Update regarding this?

I updated my iOS version from 12.0 to 15.5 and it works.

in simulator?

[DanielAraldi]

Any Update regarding this?

I updated my iOS version from 12.0 to 15.5 and it works.

in simulator?

Yep