source error for point annotations

[alladyaditi]

Source check error: PlatformException(0, Source d6253eb4-f435-4b80-8b81-8ac16daa3a2b is not in style, null, null)
[MapScreen] Processing layer: da59e513-e21d-4296-81e6-9dc59a851796, Grid Points

Adding as SymbolLayer

Future<void> _addPointLayerAsSymbol(
    Map<String, dynamic> geoJsonMap, MapLayer layer) async {
  try {
    Uint8List list;
    String iconId = layer.id;

    if (layer.iconPath != null && layer.iconPath.isNotEmpty) {
      final file = File(layer.iconPath);
      if (await file.exists()) {
        list = await file.readAsBytes();
        list = await _resizeIcon(list, 12, 12);
      } else {
        developer.log('Icon file does not exist: ${layer.iconPath}',
            name: 'MapScreen');
        final ByteData bytes =
            await rootBundle.load('assets/icons/plus-12.png');
        list = bytes.buffer.asUint8List();
        list = await _resizeIcon(list, 12, 12);
        iconId = 'default-icon';
      }
    } else {
      final ByteData bytes = await rootBundle.load('assets/icons/plus-12.png');
      list = bytes.buffer.asUint8List();
      list = await _resizeIcon(list, 12, 12);
      iconId = 'default-icon';
    }

    if (!_addedImages.contains(iconId)) {
      await _mapboxMap.style.addStyleImage(iconId, 1.0,
          MbxImage(width: 12, height: 12, data: list), true, [], [], null);
      _addedImages.add(iconId);
    }

    for (var feature in geoJsonMap["features"]) {
      final geometry = feature["geometry"]["coordinates"];
      final longitude = geometry[0];
      final latitude = geometry[1];
      final id = feature["id"].toString();

      await _mapboxMap.style.addLayer(SymbolLayer(
        id: '${layer.id}_symbol_$id',
        sourceId: layer.id,
        iconImage: iconId,
        iconSize: 1.0,
        iconOffset: const [0.0, -6.0],
        filter: [
          '==',
          ['id'],
          id
        ],
      ));
    }
  } catch (e) {
    developer.log('Error adding point layer: $e', name: 'MapScreen');
  }
}

Adding using PointAnnotationsManager

Future<void> _addPointLayerWithAnnotations(
    Map<String, dynamic> geoJsonMap, MapLayer layer) async {
  try {
    Uint8List list;
    String iconId = layer.id;

    if (layer.iconPath != null && layer.iconPath.isNotEmpty) {
      final file = File(layer.iconPath);
      if (await file.exists()) {
        list = await file.readAsBytes();
        list = await _resizeIcon(list, 12, 12);
      } else {
        final ByteData bytes =
            await rootBundle.load('assets/icons/plus-24.png');
        list = bytes.buffer.asUint8List();
        list = await _resizeIcon(list, 12, 12);
        iconId = 'default-icon';
      }
    } else {
      final ByteData bytes = await rootBundle.load('assets/icons/plus-24.png');
      list = bytes.buffer.asUint8List();
      list = await _resizeIcon(list, 12, 12);
      iconId = 'default-icon';
    }

    if (!_addedImages.contains(iconId)) {
      await _mapboxMap.style.addStyleImage(iconId, 1.0,
          MbxImage(width: 12, height: 12, data: list), true, [], [], null);
      _addedImages.add(iconId);
    }

    var pointAnnotationManager =
        await _mapboxMap.annotations.createPointAnnotationManager();
    _annotationManagers[pointAnnotationManager] = [];

    for (var feature in geoJsonMap["features"]) {
      final properties = feature["properties"];
      final geometry = feature["geometry"]["coordinates"];
      final longitude = geometry[0];
      final latitude = geometry[1];

      final annotation =
          await pointAnnotationManager.create(PointAnnotationOptions(
        geometry: Point(coordinates: Position(longitude, latitude)),
        iconImage: iconId,
        iconSize: 1.3,
        iconOffset: const [0.0, -5.0],
        symbolSortKey: 10,
      ));

      _annotationManagers[pointAnnotationManager]?.add(annotation);

      annotationProperties[annotation.id] = filterProperties(properties, layer);
    }

    if (layer.enablePopUp) {
      pointAnnotationManager.addOnPointAnnotationClickListener(
        CustomAnnotationClickListener(context, (data) {
          if (mounted) {
            setState(() {
              _properties = data.isNotEmpty ? data : null;
            });
          }
        }, annotationProperties),
      );
    }

    if (layer.enableLabel && layer.label.isNotEmpty) {
      await _addLabelLayer(
          layer.id, layer, layer.label, layer.labelColor, layer.zoomLevel ?? 0);
    }
  } catch (e) {
    developer.log('Error adding point layer: $e', name: 'MapScreen');
  }
}

[alladyaditi]

PlatformException(0, Source da59e513-e21d-4296-81e6-9dc59a851796 is not in style, null, null) why i am getting this error?