I am able to run the app on my computer. But when I create a pull request on Github, it is showing an error while checking:

“This application cannot tree shake icons fonts. It has non-constant instances of IconData at the following locations: Product_Model”

The code snippet as follows:

class ProductModel extends Equatable {
  final DocumentReference selfRef;
  final String productName;
  final String description;
  final DocumentReference defaultPlan;
  final IconData icon;
  const ProductModel(
      {required this.selfRef,
      required this.productName,
      required this.defaultPlan,
      required this.icon,
      required this.description});
  factory ProductModel.fromSnapshot(
      DocumentSnapshot<Map<String, dynamic>> snapshot) {
    final data = snapshot.data()!;

    return ProductModel(
        selfRef: snapshot.reference,
        productName: data['name'] as String,
        defaultPlan: data['defaultPlan'],
        icon: IconData(data['iconId'] as int, fontFamily: 'MaterialIcons'),
        description: data['description'] as String);
  }

 @override
  List<Object> get props => [selfRef, productName, defaultPlan, icon];
}

Why is this running on my computer but not Github? What is the fix for this?