crash in scanner sample code for iPad Air 2


I built unmodified “Scanner” sample code from 0.81 sdk for “iPad Air 2”, it crashes with error
2019-01-03 15:04:57.438307-0800 Scanner[546:26330] *** Terminating app due to uncaught exception ‘AVCameraCalibration’, reason: 'We want to use AV Intrinsics, but we’re not getting them! Make sure that you have set conn.cameraIntrinsicsMatrixDeliveryEnabled = YES on the AVCaptureConnection object (before you commit the AVCaptureSession configuration).'

conn.cameraIntrinsicMatrixDeliveryEnabled = YES is not stepped in, maybe isCameraIntrinsicMatrixDeliverySupported is not supported for iPad Air 2.

but the scanner app downloaded from App Store works okay.

I built the Scanner sample code with Xcode 10 under Mojave, the built app works also in iPad Pro 9.7


This is an issue that has been brought up before in previous posts. We are currently working on a fix that will be ready for the next release.

For more information, please have a look at the following forum posts: