type '(HomeViewModel) => dynamic' is not a subtype of type '((HomeViewModel?) => dynamic)?'

[a43501]

I try to migrate to null safety. Only one error from stacked: ^2.0.0-nullsafety.2.

type '(HomeViewModel) => dynamic' is not a subtype of type '((HomeViewModel?) => dynamic)?'
The relevant error-causing widget was
Home
lib/main.dart:

Any suggestions please?

[a43501]

I try to migrate to null safety. Only one error from stacked: ^2.0.0-nullsafety.2.

type '(HomeViewModel) => dynamic' is not a subtype of type '((HomeViewModel?) => dynamic)?'
The relevant error-causing widget was
Home
lib/main.dart:

Any suggestions please?

I try to create issue here too:
https://github.com/FilledStacks/stacked/issues/283