Unable to capture media about swiftycam HOT 7 CLOSED

AVCaptureDeviceDiscoverySession is only available in iOS 10. The framework supports iOS 8+. Does the issue persist if you ignore the deprecation warnings and run the source code as it?

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Can you provide the source code or a sample project where this reproducible? I have never encountered this error

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I've checked my source again and guessing this part has problem. (I modified if condition because original code is deprecated)

fileprivate class func deviceWithMediaType(_ mediaType: String, preferringPosition position: AVCaptureDevicePosition) -> AVCaptureDevice? {
        if let devices = AVCaptureDeviceDiscoverySession(deviceTypes: [], mediaType: mediaType, position: position).devices {
            return devices.filter({ $0.position == position }).first
        }
        return nil
    }

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If I ignore the deprecation warnings, it's running well...

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I was wrong. Added deviceTypes and running well.
let devices = AVCaptureDeviceDiscoverySession(deviceTypes: [AVCaptureDeviceType.builtInWideAngleCamera], mediaType: mediaType, position: position).devices

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Sorry you were wrong about what? That its running well with the original source, or that that was the part of the refactored code that is giving you problems?

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Original source is running well and new code fixed for deprecation is also running well.

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