How can I solve Navigator.push() error in Flutter?-CodePudding

There are Error Messagge, Error Code and some HomePageCode. What is matter??

I did that error message said to do. But I CAN'T SOLVE PLOBLEM.

[Error Message]

lib/create_page.dart:194:63: Error: Too few positional arguments: 1 required, 0 given.
     context, MaterialPageRoute(builder:(context) => HomePage()),
                                                             ^
 lib/home_page.dart:10:3: Context: Found this candidate, but the arguments don't match.
     HomePage(this.user);
              ^^^^^^^^

[Error Code]

Navigator.push(
  context, MaterialPageRoute(builder:(context) => HomePage()),
);

[HomePage]

class HomePage extends StatelessWidget {
final FirebaseUser user;

HomePage(this.user);

CodePudding user response：

As for the HomePage class, you need to pass a FirebaseUser instance. If you like to make it optional, you can use named argument constructor with nullable datatype.

class HomePage extends StatelessWidget {
  final FirebaseUser? user;

  const HomePage({super.key, this.user});
}

CodePudding user response：

final FirebaseUser user;

here user is required argument,which is causing the error, either you pass it or make it nullable like

final FirebaseUser? user;

CodePudding user response：

This is because HomePage widget expects an argument of type FirebaseUser. You need to add this argument in the navigator

Navigator.push(
  context, MaterialPageRoute(builder:(context) => HomePage(user)),
);