Frame Processor Error: Failed to convert NativeBuffer to SkImage in VisionCamera example app

[YOEL311]

Describe the bug

When running the example app in this repository and selecting Camera Realtime Detection or Document Detection in the home screen, the app crashes with the following error:

Frame Processor Error: Exception in HostFunction: Failed to convert NativeBuffer to SkImage!, js engine: VisionCamera

Steps to reproduce

1. Open the example app.
2. Select 'Camera Realtime Detection' or 'Document Detection' from the Examples list.
3. App crashes and shows the error above in the React Native DevTools console.

Screenshots/Console Output

Environment

• Library: react-native-fast-opencv
• Example app from repo
• Using VisionCamera for frame processing

Additional context

• Error seems related to converting NativeBuffer to SkImage in VisionCamera frame processor.
• Occurs during real-time document detection or object detection.

Expected behavior

• Example should process camera frame without throwing SkImage conversion error.

Possible causes

• Buffer format/pixelFormat or channel count mismatch with SkImage expectations.
• Issue with VisionCamera or react-native-skia integration.

Please advise on how to fix or workaround this issue. Any guidance or update would be appreciated.

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Relevant images attached for reference.

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[YOEL311]

Just wanted to add some context for anyone running into this error:

I only encountered the getNativeBuffer() requires HardwareBuffers, which are only available on Android API 26 or above error after updating to Android 15 (API 34). Previously, the app was running on lower Android versions without this specific error.

I tried to fix it by changing the minSdkVersion in my app's build.gradle to 26 . However, after making this change, I still hit the same error, and the frame processor fails as described above.

For a related error and discussion, see Issue #102:

Hope this helps clarify the situation for others!

[YOEL311]

related issue

mrousavy/react-native-vision-camera#3440 (comment)

[YOEL311]

seems to be a react-native-skia bag
Shopify/react-native-skia#2964