NoSuchMethodError: The getter 'name' was called on null - flutter

Question

I am trying to add an option to take images and pictures and save them to local device. I have managed to add the Camera and video. whenever I click on the take picture or video button I end up getting the error
I/flutter ( 4827): NoSuchMethodError: The getter 'name' was called on
null. Receiver: null.Tried
calling: name . NoSuchMethodError: The getter 'name'
was called on null. Receiver: null Tried calling: name
Am using the flutter camera library. What am I doing wrong? Thank you in advance
my camera code
List<CameraDescription> cameras = [];
void logError(String code, String message) =>
print('Error: $code\nError Message: $message');
Future<void> main() async {
// Fetch the available cameras before initializing the app.
try {
WidgetsFlutterBinding.ensureInitialized();
cameras = await availableCameras();
} on CameraException catch (e) {
logError(e.code, e.description);
}
final camera = cameras.first;
runApp(TakePicturePage(camera: camera));
}
class TakePicturePage extends StatefulWidget {
final CameraDescription camera;
TakePicturePage({#required this.camera});
#override
_TakePicturePageState createState() => _TakePicturePageState();
}
class _TakePicturePageState extends State<TakePicturePage> {
final fileName = DateTime.now().millisecondsSinceEpoch.toString();
var vidPath;
CameraController _cameraController;
Future<void> _initializeCameraControllerFuture;
int _selectedIndex = 0;
bool _start = false;
bool _isRec = false;
void _onItemTapped(int index) {
setState(() {
_selectedIndex = index;
if (_selectedIndex == 1) {
_start = !_start;
}
});
}
#override
void initState() {
super.initState();
_initApp();
_cameraController =
CameraController(widget.camera, ResolutionPreset.medium);
_initializeCameraControllerFuture = _cameraController.initialize();
_fileInit();
}
_initApp() async {
final cameras = await availableCameras();
final camera = cameras.first;
_cameraController = CameraController(
camera, ResolutionPreset.max,
);
}
void _fileInit() async {
vidPath = join((await getTemporaryDirectory()).path, '${fileName}.mp4');
}
void _takePicture(BuildContext context) async {
try {
await _initializeCameraControllerFuture;
if (_selectedIndex == 0) {
final imgPath =
join((await getTemporaryDirectory()).path, '${fileName}.png');
await _cameraController.takePicture(imgPath);
Navigator.pop(context, imgPath);
} else {
if (_start) {
await _cameraController.startVideoRecording(vidPath);
setState(() {
_start = !_start;
_isRec = !_isRec;
});
} else {
_cameraController.stopVideoRecording();
setState(() {
_isRec = !_isRec;
});
Navigator.pop(context, vidPath);
}
}
} catch (e) {
print(e);
}
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Stack(
children: <Widget>[
FutureBuilder(
future: _initializeCameraControllerFuture,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.done) {
return CameraPreview(_cameraController);
} else {
return Center(child: CircularProgressIndicator(backgroundColor: Colors.green,));
}
},
),
SafeArea(
child: Align(
alignment: Alignment.bottomCenter,
child: Padding(
padding: const EdgeInsets.all(8.0),
child: FloatingActionButton(
backgroundColor: Colors.green,
child: _selectedIndex == 1 ? _isRec == true?Icon(Icons.pause, color: Colors.white):Icon(Icons.play_arrow, color: Colors.white) : Icon(Icons.camera, color: Colors.white),
onPressed: () {
_takePicture(context);
},
),
),
),
),
_isRec == true
? SafeArea(
child: Container(
height: 30,
// alignment: Alignment.topLeft,
decoration: BoxDecoration(
color: Color(0xFFEE4400),
borderRadius: BorderRadius.circular(10),
),
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
"REC",
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 15,
color: Color(0xFFFAFAFA)),
),
),
),
)
: SizedBox(
height: 0,
)
],
),
bottomNavigationBar: BottomNavigationBar(
items: const <BottomNavigationBarItem>[
BottomNavigationBarItem(
icon: Icon(Icons.camera),
title: Text('Picture'),
),
BottomNavigationBarItem(
icon: Icon(Icons.videocam),
title: Text('Video'),
),
],
currentIndex: _selectedIndex,
selectedItemColor: Colors.green,
onTap: _onItemTapped,
),
);
}
#override
void dispose() {
_cameraController.dispose();
super.dispose();
}
}
the camera is not being opened