フロントカメラに設定すると起動できません

前提・実現したいこと

このサイトを参考にして、画像を取得するコードを書いています。
https://dev.classmethod.jp/smartphone/ios-avfoundation-avcapturevideodataoutput/
外カメではなく内カメで作りたかったので該当の箇所に手を加えました
.backだと正常に起動するのですがfrontにするとエラーを吐きます。

発生している問題・エラーメッセージ

Thread 1: signal SIGABRT

該当のソースコード

swift
1import UIKit
2import AVFoundation
3
4protocol AVCaptureDelegate {
5    func capture(image: UIImage)
6}
7
8class AVCapture:NSObject, AVCaptureVideoDataOutputSampleBufferDelegate {
9    
10    var captureSession: AVCaptureSession!
11    var delegate: AVCaptureDelegate?
12    var videoDevice: AVCaptureDevice!
13    
14    
15    var counter = 0
16    let DISMISS_COUNT = 5
17    
18    override init(){
19        super.init()
20        
21        captureSession = AVCaptureSession()
22        captureSession.sessionPreset = AVCaptureSession.Preset.hd1920x1080
23        
24        
25        
26        // 該当の箇所
27        videoDevice = AVCaptureDevice.default(
28            AVCaptureDevice.DeviceType.builtInWideAngleCamera,
29            for: AVMediaType.video,
30            position: .front) // position: .front
31        
32        
33        videoDevice?.activeVideoMinFrameDuration = CMTimeMake(1, 30)// 1/30秒 (１秒間に30フレーム)
34        
35        
36        let videoInput = try! AVCaptureDeviceInput.init(device: videoDevice!)
37        captureSession.addInput(videoInput)　　////////breakpointの箇所
38        
39        
40        let videoDataOutput = AVCaptureVideoDataOutput()
41        videoDataOutput.setSampleBufferDelegate(self, queue: DispatchQueue.main)
42        videoDataOutput.videoSettings = [kCVPixelBufferPixelFormatTypeKey as AnyHashable as! String : Int(kCVPixelFormatType_32BGRA)]
43        videoDataOutput.alwaysDiscardsLateVideoFrames = true
44        
45        captureSession.addOutput(videoDataOutput)
46        
47        
48        DispatchQueue.global(qos: .userInitiated).async {
49            self.captureSession.startRunning()
50        }
51        
52    }
53    
54    
55    func captureOutput(_ captureOutput: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
56        
57        if (counter % 60 == 0) {
58            
59            let image = imageFromSampleBuffer(sampleBuffer: sampleBuffer)
60            delegate?.capture(image: image)
61            
62            if let camData = CMGetAttachment(sampleBuffer, kCMSampleBufferAttachmentKey_CameraIntrinsicMatrix, nil) as? Data {
63                
64                let matrix: matrix_float3x3 = camData.withUnsafeBytes { $0.pointee }
65                print(matrix)
66            }
67        }
68        counter += 1
69    }
70    
71    
72    func imageFromSampleBuffer(sampleBuffer :CMSampleBuffer) -> UIImage {
73        
74        let imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)!
75        
76        CVPixelBufferLockBaseAddress(imageBuffer, CVPixelBufferLockFlags(rawValue: 0))
77        
78        let base = CVPixelBufferGetBaseAddressOfPlane(imageBuffer, 0)!
79        let bytesPerRow = UInt(CVPixelBufferGetBytesPerRow(imageBuffer))
80        let width = UInt(CVPixelBufferGetWidth(imageBuffer))
81        let height = UInt(CVPixelBufferGetHeight(imageBuffer))
82        
83        let colorSpace = CGColorSpaceCreateDeviceRGB()
84        let bitsPerCompornent = 8
85        let bitmapInfo = CGBitmapInfo(rawValue: (CGBitmapInfo.byteOrder32Little.rawValue | CGImageAlphaInfo.premultipliedFirst.rawValue) as UInt32)
86        let newContext = CGContext(data: base, width: Int(width), height: Int(height), bitsPerComponent: Int(bitsPerCompornent), bytesPerRow: Int(bytesPerRow), space: colorSpace, bitmapInfo: bitmapInfo.rawValue)! as CGContext
87        
88        CVPixelBufferUnlockBaseAddress(imageBuffer, CVPixelBufferLockFlags(rawValue: 0))
89        
90        let imageRef = newContext.makeImage()!
91        let image = UIImage(cgImage: imageRef, scale: 1.0, orientation: UIImageOrientation.right)
92        
93        return image
94    }
95}
96