Flutter problem with finding provider context
The issue is:
Your ChangeNotifierProvider is located inside Home, but you are trying to access it outside Home.
Providers are scoped. Which means that if it's located inside a widget tree, only its descendants can access it. As such, in your code, only Home can read from the provider.
To fix that, move the provider above MaterialApp:
ChangeNotifierProvider<UserRepository> ( builder: (context) => UserRepository(), child: MaterialApp( home: Home(), ),)
You first need to create the Provider and place in the tree above the usage.for example, in your case:
Widget build(BuildContext context) {final title = 'Tap to select';return MaterialApp( title: title, home: Scaffold( appBar: AppBar( title: Text(title), ), body: Provider<UserRepository> ( builder: (context) => UserRepository(), dispose: (context, val) => val.dispose(), child: NewRouteBody()) ));}