         do{
             try device.lockForConfiguration();
             if(backCameraDevice!.hasFlash){
-                if(backCameraDevice!.isFlashModeSupported(AVCaptureDevice.FlashMode.auto)){
-                    device.flashMode = AVCaptureDevice.FlashMode.auto;
+                if(backCameraDevice!.isFlashModeSupported(AVCaptureFlashMode.auto)){
+                    device.flashMode = AVCaptureFlashMode.auto;
                     let image = UIImage(named: "camera_flash_auto.png") as UIImage!
                     flashUIButton.setImage(image, for: UIControlState())
                 }
-                if(backCameraDevice!.isTorchModeSupported(AVCaptureDevice.TorchMode.off)){
-                    device.torchMode = AVCaptureDevice.TorchMode.off;
+                if(backCameraDevice!.isTorchModeSupported(AVCaptureTorchMode.off)){
+                    device.torchMode = AVCaptureTorchMode.off;
                 }
             }else{
                 let image = UIImage(named: "camera_flash_off.png") as UIImage!


        HappieCameraJSON.initializeProcessingCount();

        _ = AVCaptureDevice.devices(for: AVMediaType.video)

        let devices = AVCaptureDevice.devices()

        // Loop through all the capture devices on this phone
        for device in devices {
            // Make sure this particular device supports video
            if ((device as AnyObject).hasMediaType(AVMediaType.video)) {
                // Finally check the position and confirm we've got the back camera
                if((device as AnyObject).position == AVCaptureDevice.Position.back) {
                    backCameraDevice = device as? AVCaptureDevice
                }
            }

    }

    //MARK: Utility Functions
    func deviceWithMediaType(_ mediaType: NSString, preferringPosition: AVCaptureDevicePosition) -> AVCaptureDevice{
        let devices: NSArray = AVCaptureDevice.devices(withMediaType: mediaType as String) as NSArray
        var captureDevice: AVCaptureDevice = devices.firstObject as! AVCaptureDevice

        for device in devices{
            if((device as AnyObject).position == preferringPosition){
