Inherited_provider.dart class _CreateInheritedProviderState<T> throws error when I pass in 440 as double? works with 440.0

[QCIPaulCardno]

Its difficult to see exactly what is happening here as the call stack doesn't have any reference to my code but here is my code and the change that I make to get it to work.

Where I call
GenericSidePanelState(panelType: ContourThematicPanelType.meticDisplay, width: 440);

I get
"Exception has occurred.
_TypeError (type 'int' is not a subtype of type 'double?')"
line 743
Inherited_provider.dart class _CreateInheritedProviderState

Where
class GenericSidePanelState extends PanelDetailsState {
ContourThematicPanelType panelType;

GenericSidePanelState({width, required this.panelType}) : super(width: width);
}

and
abstract class PanelDetailsState {
double? width;
PanelDetailsState({required this.width});
}

When I change this to (note the ".0" added to 440)
GenericSidePanelState(panelType: ContourThematicPanelType.meticDisplay, width: 440.0);

then it works.

[rrousselGit]

Please provide a full example. As is, it's very hard to tell what's going on