Chapter 9 warning message in Yummy:home.dart

Flutter Apprentice: Chapter 9 Deep Links & Web URLs
Yummy project.
/lib/home.dart

Code:
onLogOut: (logout) async {
line 62 widget.auth.signOut().then((value) => context.go(‘/login’));
context is underlined.

Warning message:
Don’t use 'BuildContext’s across async gaps.
Try rewriting the code to not use the ‘BuildContext’, or guard the use with
a ‘mounted’ check.

This code seems to work. This is a function being passed to the accounts page,
it is not being executed in the build function.

Is this a message to ignore?