Example code not working for camera position

[tbecker]

Environment
Mac M1, Flutter 3.0 IOS version target 15

In info.plist
NSCameraUsageDescription is included

When opening dialog for selecting picture from camera, the request permission screen is shown.
Clicking on button leads to an error message. No Dialog opens for confirming camera usage.

Error message
The following _CastError was thrown while handling a gesture:
Null check operator used on a null value

When the exception was thrown, this was the stack:
#0 _ImagePickerState._initCameraController (package:advance_image_picker/widgets/picker/image_picker.dart:281:41)

Line 281:
final cameraController = _controller!;