Issues with 'null' values (project: flutter_rest_api)

[tonooga]

Excellent example and tutorial! Thanks for sharing it. However, I'm having error messages related to non-null values in the 'note_for_listing.dart' that does not allow the app to run. Only if I make the parameters 'required' it works. But then, other issues comes in the 'note_modify.dart'.

error: The parameter 'noteTitle' can't have a value of 'null' because of its type, but the implicit default value is 'null'. (missing_default_value_for_parameter at [startup_namer] lib\models\note_for_listing.dart:8)

error: The parameter 'noteID' can't have a value of 'null' because of its type, but the implicit default value is 'null'. (missing_default_value_for_parameter at [startup_namer] lib\views\note_modify.dart:12)

I suspect it has to do with the non-null safety feature in flutter but not sure. Any recommendations?
Thanks for the help!

Programming-Addict-Code-Examples/flutter_rest_api/part 1/notes/